Party All The Time

Justin Bieber just broke his "no photos" rule in a big way ... letting an obscure rap duo shoot a rap video in his castle.

The Biebs recently ran into a guy named BB the Jerk, a member of the L.A. rap duo These White Kids. Turns out Justin's a big fan of the duo's YouTube videos. The next thing BB knew, he and his rap partner were partying at Bieber's pool party.

At the party BB casually mentioned he had a new song called "Michael Phelps" and Justin suggested they get a video camera on the spot and shoot the music video for the song.

The video features hot chicks, of course, Bieber jumping fully clothed into the pool and there's even a cameo with Brazilian superstar Neymar Jr.

Looks like the 2016 Rio Olympics may have a new anthem.

The guys from Florida Georgia Line are throwing the ultimate tailgate party Thursday, complete with tons of free booze.

It's all to kick off the launch of FGL's new Old Camp Peach Pecan Whiskey. We're told the folks at Old Camp are rolling in 24 cases for a VIP pregame at the group's New Jersey concert.

Sorry fans, it's not open to the public -- they don't have THAT much liquor ... the tailgate is strictly for Brian and Tyler's close friends and entourage.

Brian tells us ... "It's a ritual we've had since our first shows, toasting and celebrating with our camp before taking the stage."

Fireball whiskey, you're on notice -- FGL's pregame is gonna be a peach.

Kevin Durant and Carmelo Anthony sipped vino and puffed cigars at an Olympics send-off party Monday night in Houston ... oh, and they got super fancy watches worth over TEN GRAND each!!

The guys at Haute Time and Avion tequila threw the party for Melo and KD (DeAndre Jordan was also there) at a Houston mansion last night after Team USA dismantled Nigeria.

The alcohol, smokes, and fancy food (Chicken Chasseur and Sacher Torte) weren't even the best part ... the highlight was the $27k luxury Hublot watches.

Melo got hooked up with a Big Bang Unico Titanium Bracelet (retails for about $17k) ... and Durant a Classic Fusion Titanium King Gold (about $10k).

Team USA's flying to Brazil Tuesday ... before playing China on Saturday.

Lewis Hamilton is having a great time in Barbados.

Here's the Formula One champ thrusting around the Crop Over festival with a couple of scantily clad lady friends.

Usain Bolt would be proud ...

Formula One champ Lewis Hamilton is having a GREAT day -- partying in Barbados with a half naked Chanel Iman ... who's stealing the show at one of the hottest festivals in the world!

Ex-NBA star Amar'e Stoudemire got waaaay more than a gold watch at his basketball retirement party ... but it wasn't enough to keep him retired, 'cause he came back to hoop just days after his shindig.

The guys over at Haute Time threw the party for Stat in NYC Sunday night ... inviting 50 friends and family members to celebrate the end of the big man's decade-plus basketball career.

They didn't show up empty-handed either ... Amar'e got some baller gifts, including a painting of "Black Jesus" by artist Bradley Theodore ... and a custom bottle of fancy tequila from Avion.

Here's the thing ... Amar'e basically un-retired THE NEXT MORNING ... signing a 2-year contract to play with Hapoel Jerusalem ... a pro team in Israel that he happens to co-own.

Chris Brown and his ex, Karrueche Tran, both showed up at Kylie Jenner's birthday party, and judging by the look on Karrueche's face ... it will be a looong time before it happens again.

We got video of Chris showing up with Scott Disick and cruising into the party. Everyone seemed happy.

The exit shot ... not so much. Karrueche walked out with girlfriends and when we asked how it was hanging out with Chris -- well ... you really just have to see her facial expression. Kinda says it all.

Karrueche dumped Chris more than a year ago after finding out he'd knocked up Nia Guzman.

Kylie Jenner got her birthday party started early -- and she did it partially nude ... naturally.

The soon-to-be 19-year-old rolled deep Sunday night with her whole 'KUWTK' krew into The Nice Guy for a huge party ... 10 days before her actual born day.

Kim Kardashian showed up with a new short 'do ... and Tyga also showed up, but the birthday girl could not be upstaged.

KJ was the sheer winner.

J.R. Smith went the Toby Keith route at OVO Fest in Canada this weekend -- proceeding to party his face off with a red solo cup ... and he looked super turnt.

Smith was with former Cavs teammate Dahntay Jones and French Montana at the festival in Toronto -- sippin' something while sitting at a private VIP area in the middle of the Air Canada Centre.

Fun Fact -- the OVO Fest is same place where Drake publicly claimed victory in his beef with Meek Mill last year ... running anti-Meek memes on the big screen while the crowd went crazy. Remember that?

Chris Pratt can officially do it all, he just crossed the Electric Slide and Cupid Shuffle off his list of talents.

Some lucky fans were surprised Thursday night when Chris showed up to the sports bar at Clearwater Casino in Suquamish, Washington -- population just over 4,000.

Sources tell us he was at the bar with his parents, taking pictures and interacting with fans well past midnight. He grew up in the area, and clearly felt right at home since we're told he tore up the dance floor during the Electric Slide AND the Cupid Shuffle!

As you might have figured from that last part -- we're told he was throwing back beers too.

You know you wanna party with Chris.

He's currently in the middle of one of the richest contract negotiations in pro sports ... but Thursday night soccer superstar Paul Pogba decided to HIT THE CLUB!!

TMZ Sports has footage of the 23-year-old Juventus player leaving 1 OAK nightclub in Hollywood after 2 AM -- while surrounded by an entourage that was slapping anyone trying to record the guy on their cell phones.

Pogba had reportedly undergone a medical exam while in L.A. -- while Manchester United continued to work on a 5-year deal that would pay the superstar roughly $90 MILLION!

Lydia Hearst's bachelorette party was a perfect fit for her last name -- no cheesy Vegas strip club, instead her turn up went down inside historic Hearst Castle.

Sources close to Lydia -- who's engaged to TV host Chris Hardwick -- say she took 18 friends to the San Simeon, CA landmark built by her great-grandfather ... newspaper magnate William Randolph Hearst.

Her guests included Cara Santana, Michelle Trachtenberg, Clare Grant (Seth Green's wife) and actress Jillian Murray. The ladies were treated to a 2-hour VIP tour ... complete with a swim session in the famed indoor Roman pool (usually off limits). The floaties were pre-approved.

We're told private events at Hearst Castle typically cost up to $22,000 ... but with the family discount Lydia's tab came to $0.00.

Perks of royalty.

Someone call Chippendales ... 'cause the greatest WR of all time stripped out of his shirt to give a crotch-thrusting lap dance at a party over the weekend ... and TMZ Sports has the footage.

Jerry Rice was at an event for the American Century Celebrity golf tourney in Lake Tahoe over the weekend -- when 50 Cent's "In Da Club" started playing ... and Mr. Rice ditched his top.

From there, he spotted his assistant in the crowd ... and decided to dance up on her -- eventually droppin' his butt down in her lap like he was straight outta "Magic Mike."

Seems to be an annual thing for Jerry ... who busted a similar move with a G-string clad dancer at a Lake Tahoe club last year.

Seriously, Jerry ... call Chippendales already.

Mariah Carey and billionaire fiance James Packer could've filmed an alternate version of her "Touch My Body" video while partying Sunday night at a nightclub in Capri.

The couple packed on some serious PG-13 PDA next to the DJ booth.

Mariah seemed to be a handful, but nothing Packer couldn't handle.

Alessandra Ambrosio's on an endless yacht vacation that just gets better and better ... courtesy of her smoking hot friends, including Sofia Richie.

Lionel's model daughter is hanging with Alessandra and co. off the coast of Ibiza. They've been going cray cray on vacay -- holding hands leaping into the water, dancing with each other ... and showering on deck. Lots of showering.

Steve Aoki, David Guetta, Afrojack and ... Shaq?

The Diesel might just be on that list of world-famous and successful DJs ... after having rocked the crowd at one of the biggest EDM festivals in the entire world.

Shaq took the stage early Friday at Tomorrowland ... a 3-day EDM bonanza in Belgium that attracts over 180,000 crazily dressed (probably unsober) partygoers a year.

We're told Shaq's set lasted about an hour ... and while his primary wheelhouse is hip-hop ... he mainly stayed true to the EDM format most of the crowd wanted to hallucinate to.

Check out the video ... it's clear the big man was totally into it, and we already know he takes his reputation as a DJ very seriously, so it's no wonder he killed it.