Coachella

Coachella's first weekend's still ragin', but some celebs chose to stay closer to home ... picking tuxedos and champagne instead of hard partyin' in the desert.

The 10th annual Breakthrough Prize Honors -- known in some circles as "The Oscars of Science" -- took place at the Academy Museum of Motion Pictures Saturday night and many of Hollywood's more "serious" stars stuck around for the festivities.

Kim Kardashian and her mom Kris Jenner took centerstage, of course ... wearing off-setting black and white ensembles while Elon Musk and Bradley Cooper kept it simple in traditional tuxes.

El viento aullaba por los campos de polo de Indio en el segundo día del festival de música y artes del Valle de Coachella y los grandes nombres del desierto se enfrentaron a vendavales y se adentraron en lo desconocido.

El día 2 trajo consigo grandes fiestas y actuaciones... ¡y Hollywood respondió a esa energía con sus propios looks! Teyana Taylor llevó la antorcha de los vaquero con un sombrero/bandana de la época de Bret Michaels y un caftán plateado transparente.

Lukas Gage lo mantuvo casual... pero de alguna manera le dio un toque de fraternidad a su look de moda festivalera... y Olivia Culpo hizo su peregrinación anual a las tierras sagradas de Hollywood con un sencillo vestido blanco para impulsar las plur vibes.

La fiesta posterior MÁS GRANDE del fin de semana, Neon Carnival, atrajo a todos los nombres más importantes del desierto... Ke$ha estaba armando un infierno mientras lucía con una camiseta vintage y un par de botas de vaquero clásicas. Amber Rose mostró sus curvas alrededor de la fiesta de Brent Bolthouse con un body verde... mientras que Paris Hilton continuó "viviendo en el desierto" con un jersey negro y algunos accesorios de cadenas cromadas.

Taylor Swift y Travis Kelce aparecieron por sorpresa en Coachella el sábado por la noche… acogidos por el backstage, mostraron su apoyo a los colaboradores de Tay.

La pareja fue vista detrás del escenario, abrazándose y bailando mientras tocaba la banda de su amigo Jack Antonoff, Bleachers.

Taylor también mostró apoyo a su colaboradora en “Karma”, Ice Spice, durante su set.

Taylor Swift and Travis Kelce made a surprise appearance at Coachella Saturday night ... getting cozy backstage while showing support for Tay's Collaborators.

The couple was spotted backstage hugging and dancing while friend Jack Antonoff's band Bleachers performed.

Traylor also showed support for Tay's "Karma" collaborator Ice Spice during her Coachella performance.

Gwen Stefani and the men of No Doubt set Coachella ablaze last night ... returning to the stage together for the first time in nearly a decade.

Gwen, bassist Tony Kanal, guitarist Tom Dumont and drummer Adrian Young took the stage last night, playing a nostalgic and high-energy set ... performing their first gig together in -- as Stefani herself put it -- "nine f***ing years!"

The band performed an 80-minute set and fans ate it up ... calling the reunion "iconic" and "one of the best performances of the year" on social media.

The winds were howling across the Indio polo fields for the second day of the Coachella Valley Music and Arts Festival and the biggest names in the desert faced the gales head-on into the unknown in true fashion!

Day 2 brought some big parties and performances ... and Hollywood matched that energy with some big looks of their own! Teyana Taylor carried the torch for the cowgirl caps with a Bret Michael's era hat/bandana and a sheer silver kaftan.

Lukas Gage kept it casual ... but somehow styled a frat-forward look into fest-fashion ... and Olivia Culpo made her yearly pilgrimage to the Hollywood holy-lands in a simple white dress to push the pure plur vibes.

The weekend's BIGGEST after-party Neon Carnival pulled in all the biggest names in the desert ... Ke$ha was raising hell as she rocked out with a vintage tee and a pair of classic cowboy boots. Amber Rose showed off her curves around the Brent Bolthouse bash in a green bodysuit ... while Paris Hilton continued "sliving in the desert" in a black jumper and some chromed-out chain accessories.

Yes, Coachella means Hollywood hits the desert for the music, performances and parties, but the stars also need a place to kick back, rinse off and show their hard-earned bods ... get ready to make a splash with the stars who love a good poolside hang in Palm Springs!

Soaking in the sun and having all kinds of fun, stars like Olivia O'Brien and Bretman Rock got into the swing swim of things in some sexy swimwear, and Kelsey Calemine proved that her poolside is her best side!

Smothered inside this cheeky-altered photo is a girl from the Bronx, New York City. Growing up, this rapping maven looked up to music icons like Lil Kim and Nicki Minaj. Put your best celeb-foot forward, and see if you can kick this photo edit to the curb!

If you didn't partake in her viral "And I'm Bad Like A Barbie" TikTok vid, you must've been sleeping under a rock!

She's icy, spicy and perhaps a bit pricy ... but Coachella budgeted for this queen to hit the stage both weekends and her fans are stoked!

Taylor Swift y Travis Kelce aparecieron este viernes en la noche por Los Ángeles para disfrutar de una cena romántica en lugar de ir a pasarlo bien a Coachella.

La querida pareja llegó hasta el Sushi Park, el lugar de moda de la ciudad, agarrados de la mano y viéndose guapísimos como siempre, mientras se dirigían al restaurante favorito de las celebridades.

Echa un vistazo a la foto, Tay está vestida de rojo, mientras que su hombre, Trav, fue con un suéter verde y pantalones cortos, una pareja muy sexy.

Taylor Swift and Travis Kelce popped up in L.A. Friday night ... hitting a romantic dinner instead of rockin' out to Coachella's finest.

The beloved power couple hit Los Angeles hot spot Sushi Park ... holdin' hands and lookin' fine as always while heading into the high-key celebrity restaurant.

Check out the pic ... Tay's decked out in Chiefs red while her man Killa Trav went with an all-green sweater and shorts combo -- a real good lookin' couple.

Suki Waterhouse had a big surprise for Coachella fans ... and, it wasn't a guest performer -- she announced the sex of her baby onstage.

The singer-songwriter hit the Gobi stage at the vaunted music festival ... playing a few songs before taking a break to speak directly to her audience.

Suki starts by mentioning all of the talented women playing at Coachella ... rattling off names like Sabrina Carpenter and Lana Del Rey -- before casually dropping she's been carrying around her own "amazing lady."

Suki Waterhouse tenía una gran sorpresa para los fans de Coachella y, no era un artista invitado, ¡sino revelar el sexo de su bebé en el escenario!

La cantante y compositora subió al escenario Gobi del festival de música, donde tocó algunas canciones antes de parar y hablar directamente con su público.

Suki comenzó mencionando a todas las mujeres con talento que estaban tocando en Coachella, como Sabrina Carpenter y Lana Del Rey, y después dijo casualmente que ella ha estado cargando a su propia e increíble "señorita".

Billie Eilish se dio un gustito, para ella misma y para la multitud de Coachella el viernes por la noche, apareciendo en el escenario como invitada especial para actuar junto a su ídola Lana Del Rey.

La icónica pareja fue una completa sorpresa para el público de Indio, en California, pero para Billie fue todo lo que podría haber estado esperando, dado que Lana ha sido una gran influencia en su música.

Bille salió de repente del backstage y se lanzó directamente a su canción "Ocean Eyes" con la ayuda de Lana. Luego las estrellas hicieron otro dueto, cantando la canción "Video Games" de Lana.

Billie Eilish gave herself -- and the crowd -- a real treat at Coachella Friday night ... turning up on stage as a special guest to perform with her idol Lana Del Rey.

The iconic pairing came as a surprise to the packed audience on weekend 1 of the 23rd annual festival in Indio, California. But, for Billie, it was everything she could ever hope for given that Lana has been such a major influence on her music.

Bille suddenly emerged from backstage and launched straight into her tune, "Ocean Eyes," with an assist from Lana. Then the stars did another duet, singing Lana's song, “Video Games."

The first day of the Coachella Music And Arts Festival lured in all of Hollywood's hottest celebs and influencers with promises of opulent vibes and movie-like memories ... and the three-day rager in the desert has already made good on their word!

The styles around the polo fields have traded in the flower crowns for some more futuristic fashion ... Like Charli D'Amelio pushing the boundaries with a sheer black skirt mixed with a bandana, bikini and moto boots ... while cheeky 'Chella staple and makeup maven James Charles got goth in a black Rick Owens' inspired ensemble ... all the while Heidi Klum show the newbies that going green always gets the right attention.

Beyoncé's cowboy cap craze had a big chunk of the Coachella crowd looking like they would blend in better at Stagecoach ... Megan Fox topped off her night with a straw sombrero over some bright blue hair ... and Lala Kent kept things a little more "Wild, Wild West" with a felt fedora.

Shakira had a double surprise for the crowd at Coachella on opening night ... first, she popped up for an unexpected performance, and then she announced a world tour!

The singer made her dramatic debut Friday evening at the 23rd annual festival in Indio, CA, joining Bizarrap onstage to play their songs, “La Fuerte” and “BZRP Music Sessions, Vol. 53.”

Check out this video, obtained by TMZ -- Shakira was standing on an elevated platform, which gradually lowered her to the floor.