Party All The Time

Surveillance video of the night in question surrounding the Jonathan Majors' trial has been released -- showing a scuffle between the actor and his then-girlfriend -- and a foot chase shortly thereafter.

The judge has kept a tight lid on all the evidence being presented in court over these past couple weeks, but, on Wednesday ... he popped the lid open and released it all to the media, including key footage the prosecution has been showing to the jury to prove their case.

One video, in particular, is critical ... it shows the aftermath of the alleged incident between Majors and his accuser, Grace Jabbari, after she claims he attacked her in a vehicle.

You can see Majors and Jabbari outside of an SUV ... which is stopped at a light in the middle of a relatively empty NYC street. Majors and Jabbari can be seen milling outside of the car, seemingly talking, and eventually ... Majors appears to wrap her up in his arms.

From there, you see what prosecutors describe as, "using physical force once again, Majors picked her up with both hands and shoved her repeatedly into the Escalade." However, Majors isn't successful in doing so. Soon, he lets go and bolts away from her ... and Jabbari quickly goes after him.

The pursuit goes on for quite some time, it seems, and they go for at least a couple blocks before Majors outruns Jabbari. After he loses her, she stumbles across a group of strangers on the street ... and they start to talk, with the small crew consoling her.

Majors eventually makes his way back and passes the group, with Jabbari spotting him, and he strolls by them -- seemingly telling her to stay back and to stay away. She attempts to talk to him, but he continues on down the street ... Jabbari follows him yet again.

Eventually, the two separate ... Majors goes and stays the night at a hotel and Jabbari goes out to a nightclub.

As we reported ... Majors called 911 the next morning for a suspected overdose/suicide when he found Jabbari passed out in his closet. There's video that shows him making this call as well, which he did from the lobby of his building. Once cops show up, he escorts them upstairs to his unit. The video also shows him leading them right to her, and she's completely passed out in his closet.

Eventually, we see Jabbari come down with the officers ... and she's standing upright. Photos that depict Jabbari's alleged injuries were also released as part of the evidence dump.

Lance Bass y Joey Fatone están trayendo un poco de estilo *NSYNC a la ciudad de Nueva York, donde actuaron en una fiesta de vacaciones, y probablemente alimentaron esperanzas y sueños de reunión cantando algunos de los éxitos del grupo.

Los cantantes se presentaron en la Bilt Rewards Winter Holiday House Party el martes por la noche en Maxwell Social en Tribeca. Había más de 350 invitados, entre ellos el fundador y CEO de Bilt Rewards Ankur Jain fueron entretenidos por el dúo sorpresa, que se puso al micrófono para cantar temas como "Bye Bye Bye" y "Tearin 'Up My Heart".

Joey y Lance también se tomaron un tiempo para cantar el éxito navideño del grupo, "Feliz Navidad, Felices Fiestas".

También lanzaron algunos muñecos de peluche de "Trolls" a la gente en la audiencia una punta del sombrero a la reciente reunión de la banda de chicos para una canción en la película de Justin Timberlake, "Trolls Band Together".

Los chicos se toparon con algunas estrellas de "RHONY" a lo largo de la noche, incluyendo la condesa Luann de Lesseps y la novata Erin Lichy y su marido Abraham, así como Dorinda Medley, que además se unió a Lance y Joey en el escenario para "Rudolph the Red-Nosed Reindeer!"'

Las estrellas de RHONJ, Dolores Catania y Margaret Josephs, uno de los miembros de la Million Dollar Listing de Nueva York, Ryan Serhant, y la integrante de RHONY, Carole Radziwill, también estaban en la fiesta.

No hay rastro de Justin, JC Chasez, y Chris Kirkpatrick en la fiesta... seamos honestos, conseguir todo el grupo habría sido MUCHO mejor.

Lance Bass and Joey Fatone are bringing some *NSYNC flair to New York City, where they performed at a holiday party, and probably fueled reunion hopes and dreams by singing some of the group's hits.

The singers showed up at the Bilt Rewards Winter Holiday House Party Tuesday night at Maxwell Social in Tribeca -- and over 350 guests including Bilt Rewards Founder & CEO Ankur Jain were entertained by the surprise duo, who jumped on the mic to sing tracks like "Bye Bye Bye" and "Tearin' Up My Heart."

And, since 'tis the season ... Joey and Lance also took some time to sing the group's holiday hit, "Merry Christmas, Happy Holidays."

They were also chucking some stuffed 'Trolls' dolls out to folks in the audience -- a tip of the hat to the boy band's recent reunion for a song in Justin Timberlake's flick, "Trolls Band Together."

The guys bumped into a few "RHONY" stars throughout the night ... including Countess Luann de Lesseps and newbie Erin Lichy and her husband Abraham, as well as Dorinda Medley -- who actually joined Lance and Joey onstage for "Rudolph the Red-Nosed Reindeer!"'

RHONJ stars Dolores Catania and Margaret Josephs, Million Dollar Listing New York's Ryan Serhant, and RHONY alum Carole Radziwill were also at the party.

No sign of Justin, JC Chasez, and Chris Kirkpatrick at the holiday shindig -- let's be honest, getting the whole group would've been a MUCH higher price tag.

Taylor Swift might not have Travis Kelce by her side to kick off her 34th birthday, but turns out the couple got in a pre-celebration with his mom, Donna Kelce, and his QB, Patrick Mahomes ... and we've got video of their night out.

The gang painted Kansas City red -- for Taylor and the Chiefs -- Sunday night at the Miracle on Main Street Christmas bar ... and despite the fact Trav and co. had lost to the Bills that day, everyone still seemed to have a great time.

We're told Donna was the first to dip out, leaving around 10:45 PM with some other folks in a Mercedes van. Patrick and his wife Brittany stuck around until about 1 AM when they jumped in their own party bus.

Taylor and Travis, however, enjoyed their time together until around 2 AM -- gotta get in every possible minute when you're in a long-distance relationship! As we reported, Taylor planted a big smooch on Travis inside the holiday-themed bar that night.

They eventually left together in a white SUV with security in tow, and interestingly ... Travis' had driven his Rolls-Royce to the bar, but must've had a few drinks -- he opted to leave his luxury car on the street, and ride with Taylor instead.

Taylor's showing no signs of stopping when it comes to cheering on Travis from the sidelines ... win or lose. They've lost the last 2 she attended, but hey ... they're still 4-2 with her, and still 1st in their division!

Taylor Swift podrá no tener a Travis Kelce a su lado para celebrar sus 34 años, pero resulta que la pareja organizó una pre-celebración con su madre Donna Kelce y su compañero de equipo Patrick Mahomes, y tenemos un video de su noche de fiesta.

La pandilla se fue de juerga en Kansas City el domingo por la noche, particularmente al bar Miracle en Main Street, y a pesar de que Travis y compañía habían perdido contra los Bills ese día, todo el mundo parecía estar muy contento.

Nos han dicho que Donna fue la primera en salir, alrededor de las 22:45, con otras personas en una furgoneta Mercedes. Patrick y su esposa Brittany se quedaron hasta alrededor de la 1 AM cuando se subieron a su propio carro.

Taylor y Travis, sin embargo, disfrutaron de su tiempo juntos hasta alrededor de las 2 AM. ¡Hay que aprovechar cada minuto cuando estás en una relación a larga distancia! Como informamos, Taylor le plantó un beso a Travis en el bar esa noche.

Finalmente, se fueron juntos en un SUV blanco. Curiosamente, Travis había conducido su Rolls-Royce hasta el bar, pero debe haber tomado un par de copas, por lo que quizás optó por dejar su carro de lujo en la calle y pasear con Taylor en su lugar.

Taylor Swift se metió en modo pre-cumpleaños el martes por la noche, pintando la ciudad de rojo con Selena Gomez, Miles Teller y su esposa, Keleigh Sperry.

La superestrella del pop cumplió 34 años el miércoles, pero la noche anterior, cuando aún tenía 33 años, se fue de fiesta con un pequeño grupo de amigos en la Gran Manzana.

TMZ obtuvo el video y las imágenes que muestran a Taylor, Miles y Keleigh llegando a Zero Bond en Manhattan y saliendo de su SUV.

Taylor iba vestida con una gabardina de color canela de moda y botas negras.

Keleigh también estaba muy elegante. Se la vio con una chaqueta azul marino y una falda corta. Miles, sin embargo, se vistió para la ocasión, luciendo pantalones vaqueros, una camisa de franela y una gorra de béisbol.

Selena debe haberse unido a ellos en el interior porque fue fotografiada llevando a Taylor de la mano fuera del popular lugar con Miles y Keleigh. Por cierto, Selena estaba guapísima con su ajustado conjunto negro.

El cuarteto fue a un bar de vinos antes de dar por terminada la noche.

Pero había un hombre muy especial que andaba desaparecido y como ya lo han adivinado es... ¡Travis Kelce! El novio de Taylor y jugador de los Kansas City Chiefs, quien tuvo un tiempo relajado consigo mismo, o eso parece.

Taylor Swift got in some pre-birthday partying Tuesday night ... painting the town red with Selena Gomez, Miles Teller and his wife, Keleigh Sperry.

The pop superstar turned 34 Wednesday -- but last evening when she was still 33, she and her small posse of famous friends went clubbing in the Big Apple.

TMZ obtained video and images, showing Taylor, Miles and Keleigh pulling up to Zero Bond in Manhattan and climbing out of their SUV.

Taylor -- clad in a fashionable tan trench coat and black boots - then sauntered inside the private club with the couple.

Keleigh also appeared stylish, wearing a navy jacket and short skirt. Miles, though, dressed down for the occasion, sporting jeans, a flannel shirt and a baseball cap.

Selena must have joined them inside because she was pictured leading Taylor -- hand in hand -- out of the hot spot with Miles and Keleigh in tow. By the way, Selena looked amazing in her tight black ensemble.

The foursome hit up a wine bar before calling it a night.

But there was one very special man who was MIA and that was ... you guessed it ... Travis Kelce!!! Taylor's hunky boyfriend/Kansas City Chiefs tight end had some quiet time to himself it seems.

Tiffany Haddish recently said she was ready for the next chapter of her life post-DUI, and seemed to signal what that looks like this weekend at Seth MacFarlane's holiday shindig.

The actress/comedian was on hand for SMF's annual Christmas party Saturday night at the Pacific Design Center in West Hollywood, where the man of the hour shared the stage with TH at one point to let her do her thing ... namely, an original cabaret-style song.

Check it out ... in video, obtained by TMZ, you can see Tiff belting out an old school sultry ditty that she said would make Sexyy Red and Lil Kim blush -- AKA, this one's naughty.

The crowd sure seemed to love it ... and why wouldn't they? Fact is, Tiffany absolutely killed it. Now, naturally, Seth himself sang some songs as well, and yes -- he rocked the house with his old Sinatra-style crooning too ... just like he always does.

It's interesting that Tiffany's keeping this cabaret thing going -- she rolled something else out just like this a couple weeks ago during her birthday celebration, and seems to be signaling she's all in on this type of performance. We know for a fact she's focusing on music lately.

Sofia Vergara has moved on to a new partner amid her divorce with Joe Manganiello, and now ... he's done the same, linking up with Caitlin O'Connor and going public as a couple.

The actor showed up Saturday night to the Children of Armenia Fund Gala in NYC, and he had Caitlin hanging off his arm as his date. There've been sightings and rumblings of them having already been together of late ... so, it seems they were ready to reveal their romance.

Joe was looking sharp with a traditional suit ... COC was draped in a beautiful green gown. They held on to each other as people fired off photos, and smiled happily for the cameras.

If you're wondering why they were even there in the first place ... it's cause JM was honored with the COAF Humanitarian Award. Sounds like he's been involved with them for a while.

Now, as far as who Caitlin is ... well, she's an actress too -- and like we told you, she met Joe at a 'Winning Time' after-party earlier this year, and they hit it off. She was only in 2 episodes of the hit HBO series, but she's been in a bunch of other stuff as well.

Like we said ... this would be Joe's first relationship post-Sofia ... to whom he was married for 7 years before filing to end their marriage in court earlier this summer. That divorce case is still pending at the moment, but it looks like it might be finalized in due time.

Sofia, meanwhile, is already dating a new fella too ... a respected orthopedic surgeon named Justin Saliman, who's been seen hitting the town with her a lot over the past few months.

Her and Joe's split came out of nowhere this year, but we've heard they'd grown apart ... and that another big reason for their divorce was over kids. He wants 'em, she doesn't.

Sofia Vergara ha cambiado de pareja en medio de su divorcio con Joe Manganiello, y ahora, él ha hecho lo mismo, uniéndose a Caitlin O'Connor y haciéndolo público.

El actor se presentó el sábado por la noche en la Gala del Fondo para los Niños de Armenia en Nueva York, y llevaba a Caitlin colgada del brazo como su cita. Ha habido avistamientos y rumores de que ya han estado juntos últimamente, así que parece que estaban listos para revelar su romance.

Joe se veía elegante con un traje tradicional, Caitlin estaba envuelta en un hermoso vestido verde. Se agarraron el uno al otro mientras la gente tomaba fotos y sonreían felices para las cámaras.

Si te estás preguntando por qué estaban allí en primer lugar, es porque Joe fue galardonado con el Premio Humanitario del COAF. Suena como que ha estado involucrado con ellos por un tiempo.

Ahora, en cuanto a quién es Caitlin, bueno, ella es una actriz también y como te dijimos, conoció a Joe en un after party de la serie "Winning a principios de este año y se cayeron bien. Ella solo estuvo en dos episodios de la exitosa serie de HBO, pero ha estado en un montón de otras cosas.

Como hemos dicho, esta sería la primera relación de Joe después de Sofía, con la que estuvo casado durante siete años antes de solicitar el divorcio en los tribunales a principios de este verano. Ese caso de divorcio sigue pendiente en este momento pero parece que podría ser finalizado a su debido tiempo.

Sofía, mientras tanto, ya está saliendo con un nuevo chico también, un cirujano ortopédico respetado llamado Justin Saliman, que ha sido visto con ella en la ciudad los últimos meses.

La separación de Joe y Sofía surgió de la nada este año, pero sabíamos que se habían distanciado un poco, además, otro motivo importante de su divorcio fueron los hijos. Él los quiere, ella no.

Selena Gómez está recibiendo una ola de críticas por su relación con Benny Blanco, y parece que está tratando de apoyarse en una de sus mejores amigas... Taylor Swift.

La cantante y actriz salió el viernes por la noche en Nueva York para lo que resultó ser una cena de chicas, no solo con Taylor, sino que también con Cara Delevingne, Zoe Kravitz y más tarde con Anya Taylor Joy. Sophie Turner estaba un poco ocupada, al parecer.

De todos modos, todas estaban vestidas de punta en blanco para su paseo, incluyendo Selena, que estaba en una especie de traje de piel de serpiente que le quedaba muy bien. Claramente, estaba lista para las fotos.

Se dice que el grupo de chicas fue a un espectáculo de comedia en Brooklyn y luego fue a un club italiano cerca de allí. La tripulación estuvo súper unida mientras iban y venían, con T-Swift al centro, por supuesto.

Sabemos que Selena y Taylor son muy unidas, y han tenido cenas como estas antes, por lo que desde su perspectiva, es solo una reunión de amigas un viernes por la noche.

Ahora, con el contexto de esta nueva "controversia" de Selena por su novio Benny Blanco, con quien confirmó que está saliendo esta semana, la junta tiene algo de intriga, ya que pasó hace muy poco para ser una mera coincidencia.

El hecho es que sus fans (y sus haters) sospechan que esta salida podría haber sido coordinada por la propia Selena como una forma de enviar un mensaje a todos los que están en pie de guerra sobre Benny.

Ese mensaje sería... ¡ESTOY AQUÍ Y NO VOY A SER AVERGONZADA!

Parte del motivo por el que está recibiendo críticas, además de que muchos piensan que Benny es un "retroceso" para ella, es por un supuesto comentario de Instagram que al parecer ella hizo en las últimas 24 horas y apunta a sus recientes observaciones sobre Palestina.

Alguien criticó a Selena por sentir la necesidad de ser muy vocal sobre su relación con Benny Blanco, pero al mismo tiempo rehuir el tema de Palestina-Israel y tomando una pausa de las redes sociales sobre algo objetivamente más importante, a lo que ella respondió "tienes razón".

Sí, de todas maneras suena como que es una crítica injusta...

En cualquier caso, Selena está aquí con sus mejores amigas, las que parecen apoyarla independientemente de su último frenesí en las redes sociales.

Selena Gomez is catching heat over her relationship with Benny Blanco -- and it seems she's dealing with it by leaning on one of her best gal pals ... Taylor Swift.

The singer/actress stepped out Friday night in NYC for what turned out to be an all-female power dinner with not just Taylor -- but Cara Delevingne and Zoe Kravitz as well ... and later in the evening, Anya Taylor-Joy too. Sophie Turner was a tad bit busy, it seems.

Anyway, everybody was dressed to the nines for their pap walk ... including Selena, who was in some sort of snakeskin outfit that looked great on her. She was clearly ready for pics.

The group of ladies are said to have hit up a venue for Brooklyn for a comedy show, and then went to an Italian joint nearby shortly thereafter. As they came and went, the crew was putting on a pretty united front -- with T-Swift, of course, being the main centerpiece.

We know Selena and Taylor are tight, and they've gone out for high-profile dinners like this before ... so on its face, it's just a group of friends getting together to paint the town red.

Now, with the added context of this new "controversy," Selena finds herself in as it pertains to Benny -- whom she confirmed she was dating this week -- it lops on an extra layer of intrigue and speculation, as the timing appears to be too close to be a mere coincidence.

Fact is, fans (and haters) of hers suspect this outing might've likely been coordinated by Selena herself as a way to send a message to everyone who's up in arms about Benny.

That message being ... I'M HERE, AND I AIN'T GONNA BE SHAMED INTO GOING DARK!

Part of the reason she's catching flak over Benny -- aside from the fact people think she's "dating down" by being with him -- is because of this alleged IG comment she apparently responded to over the past 24 hours ... which points to her recent remarks on Palestine.

Someone slammed Selena for feeling the need to be very vocal over her relationship with BB, but shying away from the Palestine-Israel issue and taking a social media break over something objectively more important ... to which she replied "you're right."

If it sounds like an unfair critique ... well, you might have an argument that it totally is.

Tom Brady e Irina Shayk parecen estar de vuelta después de aparecer juntos en una fiesta en Miami, porque el tipo literalmente la recogió justo antes y fue capturado en el acto.

El retirado jugador regresó el viernes por la noche para hacer cosas que solo los mejores pueden hacer en la Ciudad Mágica, donde se está llevando a cabo Art Basel este fin de semana, con un montón de celebridades de fiesta, incluyendo TB12 e Irina, que parece que andaban juntos en el carro de Tom.

Echa un vistazo a las fotos. Tom se detuvo donde se estaba alojando Irina para recogerla, y apenas se dieron cuenta de que había un fotógrafo, se pusieron nerviosos y volaron de allí lo más rápido posible.

Afortunadamente, estas fotos fueron tomadas antes de su huida y muestran a Irina entrando al carro de Tom, mientras él rehúye de los flashes. Más tarde, esa misma noche, Tom fue visto en una fiesta llena de estrellas en la ciudad... pero sin rastro de Irina cerca de él.

Su sola presencia en la mansión privada de Wayne y Cynthia Boich el viernes habría sido suficiente para poner en los rumores de nuevo, pero estas fotos lo dicen todo, y es que están saliendo de nuevo. O por lo menos, que están coqueteando, que es todo lo que nos importa en realidad.

Curiosamente, este encuentro nos recuerda a la primera vez que vimos a Tom e Irina de paseo a principios de este verano, donde también fueron capturados juntos y poniéndose cariñosos. Es una escena muy parecida y parece que el hombre es de la vieja escuela con sus citas.

Aunque habíamos oído que su relación se había esfumado a finales de verano, había señales de que Irina seguía viendo a Tom. El mes pasado apareció en su edificio en Nueva York y lo hizo muy llamativamente, cruzando nada menos que por la entrada principal.

Por supuesto, ella también ha estado saliendo mucho con su ex y padre de su hija por estos días. Pero es bastante evidente que ella y Bradley Cooper son solo grandes padres y amigos (vean a Gigi).

Acabamos de ver a Irina mezclándose con Brad en la Gran Manzana. Fue una de las primeras clientas en llegar a su recién inaugurado carro de comida y él parecía muy contento de verla.

Como dijimos, Irina y Bradley Cooper son dos guisantes en una vaina, pero al parecer solo platónicamente ahora.

De todos modos, es bueno ver a Tom recuperando su gracia después de la jubilación. Teniendo en cuenta que su exesposa está constantemente saliendo con su instructor de jiu-jitsu -incluso junto a sus propios hijos- el hombre merece tener un poco de diversión también. E Irina parece ser la persona.

No se le puede culpar por volver por una segunda ronda con ella ... Ella es jodidamente buena, después de todo.

Tom Brady and Irina Shayk sure seem to be back on after hitting up a party together in Miami -- 'cause the dude literally picked her up right beforehand, and got caught in the act.

The retired QB was back to doing G.O.A.T. things again Friday night in Magic City -- where Art Basel is going down this weekend ... and where a crap ton of celebs are out and about ... including TB12 and Irina, it seems, who were rolling together in Tom's sweet ride.

Check out the pics ... Tom pulled up to wherever IS was staying to pick her up curbside -- and as soon as they noticed a photog, they got skittish and flew outta there ASAP.

Fortunately, these photos were snapped before their getaway -- which shows Irina hopping into Tom's passenger seat, and Tom shying away from the flashes. Later this same evening, Tom was seen at a star-studded shindig in town ... no sign of Irina near him though.

Their presence alone at Wayne and Cynthia Boich's private mansion party Friday would've been enough to get the rumor mill going again -- but these shots seal the deal ... they're dating again. Or at the very least, they're banging ... which is all anyone cares about, really.

Interestingly enough, Tom and Irina's car ride here echoes the first time we saw them together earlier this summer -- where they were also caught cruisin' in his whip and getting cozy. This is a very similar scene ... looks like the dude is old school with his dates.

Although we'd heard that their relationship/fling had fizzled out by the end of summer, there were signs Irina was still seeing Tom ... she popped into his condo building in NYC last month, and did so very conspicuously -- through the main front entrance.

Of course, she's also been hanging out a lot with her ex/baby daddy Bradley Cooper these days -- but it's pretty evident at this point that they're just great co-parents/pals (see Gigi).

We just saw Irina mingling with Brad in the Big Apple, where she was among the first customers to hit up his just-launched food truck ... and he looked damn happy to see her.

Like we said ... her and BC are two peas in a pod, but seemingly just platonically now.

Anyway, good to see Tom getting his groove back post-retirement. Considering his ex-wife is constantly jet-setting with her jiu-jitsu instructor all the time -- alongside their own kids, no less -- he deserves to have a little fun too. And Irina seems to be just the ticket for him.

Can't blame him for coming back for round 2 with her ... she is smokin' hot, after all.

Leonardo DiCaprio puede ser el abotonado Sr. Medio Ambiente en un momento y al minuto siguiente, el chico fiestero favorito de Hollywood, una hazaña que demostró una vez más este fin de semana en Art Basel en Miami.

El actor anduvo de fiesta una vez más el viernes en la Ciudad Mágica, donde Wayne y Cynthia Boich acogieron a un grupo de estrellas en su mansión privada, incluyendo a Leo y su novia, Vittoria Ceretti, quien disfrutó de un cigarrillo junto a su hombre.

Leo estaba en modo de fiesta, luciendo su característica gorra de béisbol negra y echando humo de su cigarrillo, con Vittoria probando una bocanada también. Todo un cambio respecto del look que tenía el jueves por la noche, cuando se sentó en la primera fila para dar un discurso en un evento sobre el medioambiente.

La reunión Re:Wild en donde Leo estuvo en su modo ecológico, tan pulido como se puede estar y con un aspecto realmente elegante. 24 horas más tarde, ¡lo deja todo al descubierto!

De todos modos, la fiesta en la mansión del viernes fue un quién es quién de las estrellas. Tom Brady estuvo allí, pero también Sean Penn, quien se abrazó con Leo en un momento, como se ve en una foto obtenida por TMZ.

Sean estuvo compartiendo con las personas adentro también, listo para una actuación de Snoop Dogg. Hablando de Snoop Dogg... el rapero también estuvo charlando con el público después de tocar el micrófono, lo cual fue increíble.

Snoop tocó algunas de sus canciones, las que hicieron bailar a todo el mundo.

Esta es solo la última parada de Leo en Art Basel. El actor ha estado en la ciudad desde principios de esta semana y algo nos dice que veremos más de él hasta el domingo.

Leonardo DiCaprio can be buttoned-up Mr. Environment one minute, and Hollywood's favorite party boy the next -- a feat he proved yet again this weekend at Art Basel in Miami.

The actor was on hand yet again Friday for a huge bash in the Magic City, where Wayne and Cynthia Boich hosted a gaggle of stars at their private mansion ... including Leo and his girlfriend, Vittoria Ceretti, who enjoyed a smoke next to her man at one point in the evening.

Leo was in party mode, rocking his signature black ball cap and blowing out whatever he was puffin' on -- with Vittoria hitting her vape. Quite the change from how he looked Thursday night, when he was front and center for a speech at an environmental event.

The Re:Wild get-together where Leo talked featured him in eco mode ... where he was as polished as can be and looking real sharp. 24 hours later, he's letting it all hang out!

Anyway, the mansion party on Friday was a who's-who of stars ... Tom Brady was there, but so was Sean Penn -- who actually hugged it out with Leo at one point -- as seen here in a photo obtained by TMZ.

Sean was mingling with folks inside as well ... fresh on the heels of a performance by Snoop Dogg, who'd performed for the rich and famous crowd not long before. Speaking of SD ... he was also chitchatting in the crowd after doing his thing on the mic, which was awesome.

Snoop performed a few of his songs ... and he definitely had everybody dancing along.

It's just the latest Art Basel stop for Leo, who's been in town since earlier this week. Something tells us we're gonna be seeing a lot more of him through Sunday too.