Hot Vegas

8 years ago, a white tiger bit the hell out of Roy ... but last night, Roy took a bite out of a white tiger.

One night before the 8th anniversary of the infamous tiger mauling ... Roy and his special friend Siegfried celebrated Roy's 67th birthday at the Mirage in Vegas on Sunday ... by diving in to a special white tiger birthday cake.

Suelyn Medeiros -- the Brazilian model who actually DEFEATED Bar Refaeli in a muddy bikini contest -- went to Vegas this week ... and yeah ... this happened.

Jennifer Lopez was single and ready to mingle last night in Las Vegas, hitting up PURE nightclub in Caesars Palace.

It took several cops to pull Ray J out of a Vegas nightclub this weekend -- after the singer popped rapper Fabolous in the face -- and TMZ has obtained footage of the post-fight ejection.

Ray was hanging out at Moon nightclub in The Palms casino -- when a Twitter feud between him and Fab turned violent ... in person.

Ray J didn't take too kindly to Fabolous talking smack about him on Twitter, so when he saw him out in Las Vegas this weekend ... he clocked him!

Kim K's sex tape partner re-told the tale on Power 105.1 this morning, explaining, "When I seen him, I was with Floyd [Mayweather] and 50 [Cent] and he tried to say, 'Don't touch me.' And I touched that n***a!"

Ray J says he got kicked out of the Palms and detained by police, but according to cops in Vegas ... he was not arrested.

With Harry and Hermione nowhere in sight, "Harry Potter" star Rupert Grint partied at Chateau Nightclub in Las Vegas last night.

Heidi Montag reminded every one she still exists last night, hosting her birthday party at Vanity Nightclub in Las Vegas.

Last season's "BIg Brother" "Bachelor Pad" winners David Good and Natalie Getz soaked up the sun, drinks and their fellow former cast mates at Nikki Beach at the Tropicana in Vegas this weekend.

Kelly Rowland has found a surefire way to make sure her boobs don't fall out of the bottom of her shirt again ... she got a longer shirt.

Rowland hit the stage at the Chateau nightclub at the Paris Hotel in Vegas this weekend and to the disappointment of pervs everywhere, no wardrobe malfunctions were reported ... unlike her show in Jersey a few weeks ago -- where she let it all hang out.

Jwoww, in all her natural beauty, played the role of host at PURE nightclub in Las Vegas last night.

While Kim Kardashian was trading "I Do's" in Montecito ... the guy who helped thrust her into superstardom was still taking credit for his conquest during a performance in Vegas ... TMZ has learned.

Ray J hit the stage at the Chateau nightclub in the Paris Hotel ... when people began asking him how he felt about his former sex tape partner's wedding.

A TMZ staffer who was in the crowd says Ray J simply smiled ... and quipped, "I did that."

Fans continued to plead with Ray J to share his thoughts on the wedding, but he wouldn't open up ... mostly laughing every time someone brought up her name.

Apparently, Ray J has moved on ... after his performance, he was getting up close and personal with a mystery lady.

If you hire Young MC to play a concert, you want to hear "Bust a Move" -- and if you hire The Situation to host a party in Las Vegas, you want him to show off his abs ... like he did last night at Gallery nightclub.

Ron Artest enjoyed what could be his last weekend in Las Vegas as Ron Artest -- partying it up at at Chateau Nightclub & Gardens at Paris Las Vegas last night.

Ron Ron's trip wasn't all about clubbin' -- he hit up a Celine Dion show and tweeted how it made him and his boys cry. Street cred ... gone.

Ex-"Baywatch" star Jeremy Jackson is currently in a meeting with honchos at Chippendales in Las Vegas -- and we're told, both parties are trying to hash out a deal for the actor to join the bow-tied bunch on a full-time basis.

Jeremy's rep tells TMZ, the former child actor is on deck to fill an empty celebrity host spot ... following 98 Degrees singer Jeff Timmons -- but unlike Jeff's short stint ... this would be a long-term deal.

We're told Jeremy is extremely serious about the gig -- going to Vegas last weekend to try on the bow tie and shirt cuffs (above) just to get a feel for the experience.

And that's not it ... we're told Jeremy's also been working out non-stop to prep for the position -- and after entering "Celebrity Rehab" earlier this year for a hormone-injecting fitness addiction ... he's doing it ALL-NATURALLY.

We're told an announcement is expected to be made shortly.

Sam Ronson was arrested this morning for DUI outside Baker, California -- home of the world's biggest thermometer --TMZ has learned.

According to the booking sheet, 33-year-old Ronson is listed as 5'7" and 102 pounds.

Law enforcement sources tell TMZ, Lindsay Lohan's ex-girlfriend was driving home from Las Vegas at 10:30AM in her black Porsche when she was pulled over for speeding.

We're told she was given a field sobriety test and didn't perform well. According to our sources, she refused to take what is commonly called a "roadside blow" -- a less-scientific breathalyzer, which is not a mandatory test. She was arrested at the scene.

Ronson was transported to the Baker substation, where we're told she blew over the legal limit. According to sources, she was cooperative the entire time.

Sam DJ'd last night at the Lavo nightclub in the Palazzo hotel in Vegas.

Thanks to our friends at SpyOnVegas.com for the pic.

Melissa Molinaro -- that chick in the Old Navy commercial that looks just like Kim Kardashian -- brought her bootyful talents to the stage lit up table at Las Vegas gay club Piranha this weekend.

Last month, Kardashian filed a lawsuit against Old Navy because she claims they hired Melissa to dupe the public into thinking Kim is affiliated with the clothing giant.