Birthdays

Here's the latest edition of "Kevin Hart vs. Height" ... where the actor/comedian tries to slam dunk using a trampoline as his launchpad -- and it's a struggle.

Kevin's attempted dunk sesh went down at one of the Sky Zones around L.A. over the weekend ... where it looks like the Hart fam was out celebrating the 13th birthday of his daughter, Heaven.

The NBA super-fan didn't want the kiddos to have all the fun, so Hart stepped up to the glow-in-the-dark Sky Slam ... and repeatedly got knocked on his ass while his wife, Eniko, yucked it up.

But, Kev didn't let the verticality shaming get him down ... and eventually got up for a 2-handed jam!!

How did Steph Curry get down for his dirty 30??

By pullin' up to his party in a frickin' YACHT ... and slamming a plate of ribs during a live E-40 set!!

And that's just a taste of what went down at Steph's oceanside shindig ... where the 2-time MVP and his Warriors bros rang in his birthday "Ballers" style.

A ton of lit song and dance went down Monday night in SF ... featuring Curry himself, who hopped onstage to lead a Rick James karaoke bro down!!

Of course, his teammates weren't gonna let him have all the fun -- right, KD, Draymond and Klay?

E-40 wasn't the only music artist in attendance -- Paramore's Hayley Williams was also in the house to serenade him with the happy bday song.

Steph looked happy as hell the whole night ... and we would be too with hundreds of millions in the bank at age 30.

Party on, Stephen.

Brielle Biermann is scared of her own freakin' shadow ... so excuse her for getting a gun on her birthday to protect herself, which she says there's NOTHING wrong with, so long as you're smart about it.

We got Kim Zolciak's daughter at LAX Monday and asked her about her 21st birthday gift last month. As we reported ... Brielle got a brand new customized Glock 43 complete with a rose gold slide. Perfect timing since she's moving out on her own.

Sharon Stone's turning the big 6-0, but don't get hung up on numbers -- she sure didn't during a South Beach PDA sesh with her, apparently, much younger bf.

Sharon's down in Miami for her birthday, which is Saturday, but she pregamed Friday afternoon in the arms of the shirtless mystery dude.

No word on who he is, but she's been hanging out with him since, at least, January. Based on the kissing and caressing going down on the beach ... they're VERY cozy with each other.

Ya gotta love it -- at 60, she's still trusting her basic instinct.

Even Oprah can't escape the Oprah factor .... heavy lies the crown.

Her Holiness was out in NYC Tuesday and -- with her movie "A Wrinkle in Time" set to premiere Friday -- Adam Glyn asked O if she ever still has to audition for roles. Remember, this isn't her first big feature. Oprah was outstanding in 'The Butler' and "Selma," to name a few.

Ya might be surprised by Oprah's answer, which includes why she got turned down for the 2008 film "Doubt."

Rick Ross' hospitalization did more than just scare his family, it caused his daughter Toie's $100k Sweet 16 to get pushed back, too.

Sources close to Rick tell us the rapper booked a section of the Casa Casuarina -- formerly the Versace Mansion -- nearly 7 months ago for Toie's bash. We're told the party was slated for March 17, but after Rick was rushed to the hospital last week, his family called to postpone the party as they didn't know how long the boss would be in for.

Ross is known for throwing elaborate parties for his daughter, with performers like Rich Homie Quan, Trina, Meek Mill and Ace Hood. We're told this year's event was going to be the biggest yet -- with hundreds of people invited, performances and several surprises for Toie.

TMZ broke the story ... Rick was released from the hospital Monday morning after a 4-day stay for apparent serious heart issues.

Justin Bieber's tipping his hat to Austin Powers to celebrate his 24th birthday ... 'cause he's shaggin', baby!!!

We got Justin cruising out of Mastro's Steakhouse Thursday night after what we've gotta believe was a pretty balling bday meal ... based on what he did when he got out.

Check out the video -- we expect the Biebs to ride in style, but this time his chauffeured SUV had something extra swaggy ... or should we say shaggy? Justin kicked back, and was as chill as we've seen him in a long time. Can't blame him.

Justin Bieber's hugging it out with his mom ... who gave birth to him 24 years ago today.

The Biebs just showed up at MB2 Raceway in the Valley with some of his church pals -- including pastor Carl Lentz -- and was welcomed by a warm hug from his mama, Pattie Mallette.

JB's plan to celebrate his birthday is apparently zipping around on go-karts on an indoor track ... which beats bottoming out a Lambo.

No sign of Selena yet, but based on how close the 2 have been lately ... it'll be no surprise if she shows up soon to join in on the fun.

As we reported ... Justin and Pattie reconciled recently and even went on vacay together, and it looks like things are still going well.

Floyd Mayweather tells TMZ Sports ... that brand new jet he posted on social belongs to HIM -- explaining, "I'm not posting a private jet if I'm chartering."

Floyd gifted himself the new plane for his 41st birthday -- by our count, it's the THIRD private jet Floyd has purchased for himself in the past couple of years.

We spoke with Mayweather about his aircraft fleet -- here's what he told us:

"I'm not posting a private jet if I'm chartering. If I'm chartering a jet, I'm not posting it. We own jets."

The new jet appears to sit at least 14 people comfortably -- plus the flight crew.

Kim Zolciak's little girl is now a grown ass, pistol-packing mama, and her mom wouldn't have it any other way ... TMZ has learned.

Brielle Biermann turned 21 on Sunday, and when she got home on Monday ... Kim was waiting with her gift -- a brand new customized Glock 43, complete with rose gold slide. Brielle seemed a little nervous around the weapon at first, but Kim said it's important for her to have it ... now that Brielle's living in her own condo.

We're told Brielle's practiced at a gun range before. She doesn't have a license yet, but Georgia doesn't require one if it's stored in a home, car or place of business.

BB also got some pieces of art, which look like molds of topless women, and set Kim back $5,550 each! The handgun was a relative bargain at just $1,300.

The Floyd Mayweather 41st birthday extravaganza continued on Sunday -- featuring Drake hitting the roller skating rink while his own music played in the background!

It was the 3rd major event for Floyd's birthday -- and maybe the most fun -- as the TMT crew took over at World On Wheels in Los Angeles for an old-school roller skating party.

Floyd tore it up in his Nike skates (as usual) ... and Drake didn't do too bad, either -- casually circling the rink in his in-line skates while the DJ played his hit, "Right Hand."

Afterward, Drake hit the arcade section -- and battled it out with the basketball free-throw game.

Floyd seemed to enjoy himself, too -- telling TMZ Sports he wants to keep the party going until 2019!!

He also bragged about his new 2018 Rolls-Royce ... which hasn't been released to the public yet.

J Lo went all out for her twins' 10th birthday party ... and she took REALLY good care of the people who helped throw it.

Jennifer put on a bash for more than 30 guests at the Sugar Factory in Las Vegas Thursday night to celebrate Max and Emme's bday. We're told the party arrived around 5 PM and threw down for FOUR hours ... and made good use of their time.

Well-connected sources tell us the bill was $7,500 and included custom cakes for each child -- red velvet Mario Bros. cake for Max and chocolate sloth cake for Emme. They also gorged on virgin gummy worm goblets, and a King Kong Sundae ... with 24 scoops of ice cream topped with sparklers!

Rihanna celebrated hitting the BIG 3-0 Tuesday night in NYC, but it was less of a bad girl RiRi party and more of a super formal Miss Fenty affair. Hey, she's maturing.

The fete for her closest friends and family was held at The Pool and Rihanna arrived in a fuchsia gown. Also in attendance were her mom, adorable goddaughter, best friend Melissa Forde ... as well as Paris Hilton and fiance Chris Zylka, and Toni Braxton.

Her Saudi billionaire heir boyfriend, Hassan Jameel, was noticeably absent from photos.

Scottie Pippen ain't playin' in the All-Star Game this weekend, but he already scored ... a freakin' awesome $30,000 luxury Swiss watch -- at a celeb packed party last night.

Haute Living and Larsa Pippen threw Scottie a party at Bungalow 1 at Chateau Marmont in L.A. to celebrate his Hall of Fame career.

Scottie -- along with guests like Kourtney Kardashian, Ludacris, Omarion and L.A. Reid -- ate (steak and salmon) and drank super expensive Louis XIII cognac.

Best part of the night (at least for Pip) ... when HL presented him with a Roger Dubuis Titanium Excalibur 45 timepiece -- a watch they tell us goes for $30k.

Now Scottie's got a watch to go with those 6 rings.

A good chunk of the cast of "Black Panther" got together to ring in one of their co-stars' 40th birthday ... but they probably had more reason to celebrate than just that.

Danai Gurira -- who plays Okoye in the upcoming film -- turns the big 4-0 Wednesday, but she and her cast members rang in her fab 40s on Monday night in NYC instead.

They were partying it up at the Boom Boom Room atop of The Standard, High Line hotel -- and from the looks of these shots ... it appears most of the major "Black Panther" actors were there, sans Michael B. Jordan.

Prince Jackson's legal today, and his kid sis is celebrating his 21st birthday by giving us a super rare look at them as playful toddlers.

Paris Jackson posted this video of herself and Prince goofing around, dancing to Notorious B.I.G.'s "Juicy."

Here's what's so cool about this video -- Michael Jackson was famously protective of his kids' privacy ... covering their faces in public and almost NEVER revealing family moments like this.

Paris included a sweet message to her big brother and "role model," telling him ... "No matter where we are in the world and in life, my home is with you and the little guy. i love you so much, gooko. i’m so proud of you. happy birthday."