Hot Vegas

Tiffany Trump helped out a friend who wanted to get married in Vegas -- sans the romance -- so she picked up a basket baggie and started tossing petals.

In a video that's since been deleted, President Trump's second youngest kid was seen as one of the few people in attendance at A Little White Wedding Chapel Sunday for her pal Quentin Esme Brown's "shotgun" marriage to "NYC Prep" star PC Peterson. -- who, apparently, aren't romantically involved.

It's interesting that Tiffany didn't fill in as a bridesmaid -- guess the Trump name doesn't carry as much weight in Sin City as it does in D.C. right now.

Usain Bolt definitely knows how to get a party going ... so it's only fitting Steve Aoki enlisted the fastest man alive to get the crowd LIT at his Vegas show Wednesday night!!

Aoki brought the Jamaican track superstar behind his booth to showcase his killer moves ... and you can tell Bolt's dancing hasn't lost a step in retirement.

FYI -- Bolt's dabbled in the DJ industry in the past, and has expressed interest in pursuing a career on the 1s and 2s ... so it's very possible he was getting some solid pointers from Aoki as well.

Celine Dion had to cancel her Vegas concert Saturday because, like many Americans right now, she's sick at home battling a nasty virus.

We're told the virus was serious enough to warrant a visit from the doctor. She was unable to sing clearly Saturday and was faced with no alternative, so she pulled the plug on the show and has been resting and on medication ever since.

Celine's generally known for toughing it through performances. She doesn't like canceling because so many people fly from out of town to see her perform.

There was a rumor Celine got hurt Friday night when a drunk fan got onstage and hugged her, but we're told that's not true.

Paris Hilton and the Palms Casino in Vegas have a very special relationship ... so it's fitting they're both looking forward to a big 2018.

The Palms put up a congratulatory shout-out to Paris on their marquee this week in honor of her recent engagement to Chris Zylka ... and also plans to gift her a piece of its iconic sign when it gets replaced later this year, as part of a $485 mil property renovation.

So, why all the love? Well, Hilton's been with the hotel and casino since day 1 -- she opened it in 2001 while wearing a million-dollar dress made of casino chips.

We're told because Paris is part of Palms' history ... Palms wanted part of its history to be with her. Oh, and it says if she needs a place to celebrate her bachelorette party ... "our door is always open for you."

Britney Spears is taking a load off in Hawaii after ending her residency in Las Vegas -- and we are so thankful for the break ... and the view.

Brit was spotted rockin' a yellow bikini on a Hawaiian beach Wednesday -- just a few days after she performed her last residency show in Vegas for New Year's Eve.

She went out with a bang then, and it looks like she's still banging now. Britney's toned figure was on full display ... and, Lordy, does she look good.

Authorities responsible for the Rose Parade have the Vegas massacre on their minds -- in fact, front and center -- TMZ has learned.

Law enforcement sources say the Parade is now a national matter ... authorities from the Pasadena as well as surrounding police departments will be all over the parade route, along with state police and federal agents.

We're told so far there are no credible threats that could put parade-goers in harm's way, but these are different times. There was no real warning with the Vegas shooter and authorities are keenly aware these attacks increasingly materialize without any warning.

And more signs of the times ... there will be barricades preventing terrorists from entering the route and going on a rampage. The area will be shut down 24 hours in advance so it can be fully secured.

There will be a full compliment of cops and equipment ... magnetometers, undercover officers, cops on horseback. The presence of law enforcement will be massive.

Cops want to stress what you've been hearing ... if you see something, say something.

The guy who bum-rushed Britney Spears on her Las Vegas stage now has 2 charges hanging over his head, and he's one step closer to a trial ... TMZ has learned.

According to court docs, Jesse Webb's trial is scheduled to begin January 18. He's been charged with one count of battery and one count of disorderly conduct, both misdemeanors.

As we reported, Webb was arrested in August after he jumped on stage, and briefly walked around before Brit's security guards and dancers took him down. Cops say Webb kicked one of the guards during the incident ... which would be the battery charge.

Webb's set to go to trial, but the reality is he's charged with misdemeanors, and the whole thing's on video -- so, all signs point to a plea deal.

Getting trumped by Trump is nothing compared to the guy in Nevada who can now say he's juiced up the Juice -- and lived to tell the tale.

O.J. Simpson hit up a Nekter Juice Bar bright and early Friday in Summerlin, near where he's been holed up since getting out of prison last month. We're told Simpson ordered a Berry Banana Burst.

It's technically a smoothie made with strawberries, bananas, blueberries, cashew milk and a little agave nectar. All that for $6, and we're told he paid straight cash, homie!

Sylvester Stallone is vehemently denying an allegation he sexually assaulted a 16-year-old girl back in 1986 while he was in Las Vegas.

The claim is based on a police report in which the alleged victim said Stallone, who was 40 at the time, invited her up to his room at the Las Vegas Hilton. She claims he had sex with her, and then asked if she'd ever had sex with 2 men at the same time.

According to the police report, published by the Daily Mail, the girl claimed Stallone's bodyguard then came out of the bathroom and she was forced to perform oral sex on him and Stallone. She claims Stallone threatened to "beat her head in" if she told anyone.

Stallone's spokeswoman Michelle Bega tells TMZ ... "This is a ridiculous, categorically false story. No one was ever aware of this story until it was published today, including Mr. Stallone. At no time was Mr. Stallone ever contacted by authorities or anyone else regarding this matter."

The girl did not want to press charges because she was scared and humiliated, and reportedly signed a "no prosecution" form.

It's not uncommon, especially with a minor involved, for police and prosecutors to pursue a case without an alleged victim's cooperation. However, Las Vegas PD tells us they could not go forward in this type of case when the victim is refusing to cooperate and move forward with charges.

Stallone's rep is adamant ... "It never happened."

O.J. Simpson was booted from the Cosmopolitan Hotel in Las Vegas Wednesday night after allegedly getting wasted and then being extremely unruly.

Simpson had been frequenting bars at the hotel since his release from prison. Hotel staff tells TMZ ... at around midnight last night, Simpson was drunk and became disruptive at the Clique bar. We're told Simpson was angry at hotel staff and glasses broke at the bar.

Check out the pic below of Simpson strolling through the hotel Wednesday night.

Here's Celine Dion singing "My Heart Will Go On" one more time, but this time it's got a sick beat that got Celine up and dancing like you've never seen before.

The beat is courtesy of Steve Aoki, who joined Celine onstage for a Las Vegas benefit show Tuesday night at Omnia Nightclub. The 2 Vegas legends teamed up for this awesome performance -- Celine singing her "Titanic" hit, and Steve tacking on a remix you really gotta see.

Somebody hand Celine some glow sticks!

Seriously though, it was all for a great cause. The event raised $1 million for the Las Vegas Victims' Fund ... and also featured Kaskade, Lil Jon, Tiesto and Zedd.

But none of them had CD's ummm ... unique dance moves.

The tragic Vegas shooting has traumatized everyone, including the folks who work at Mandalay Bay, and the guy who runs it is asking guests to give some emotional support to his staff.

President and COO Chuck Bowling penned a letter that every guest will find on their pillow, which reads in part, "If you see an employee at one of our resorts, ask how they are doing, offer words of encouragement."

The note also says there will be a new wrap on the building -- the same side where the Vegas shooter unleashed his fury -- with the words, #VegasStrong.

Bowling says in his letter, "Las Vegas has always been a place for you to come for business, for a getaway, for a break, a reunion, a party, a laugh, a good time. While that is harder for us all right now, please know our incredible team of employees is here for anything you need."

Sources connected to Wanya tell us he isn't the one who invited O.J. to the shoot -- instead it was a friend of his, who also owns the home where it all went down.

We're told Wanya was at the shoot, briefly, but didn't interact with Simpson.

Forget O.J. Simpson's Heisman pose ... LOOK AT THIS!!!

The Juice was smack in the middle of a double dose of insanely hot chicks Wednesday in Las Vegas. The women were there for a commercial shoot ... the one on the right is Laura Saucedo, and she was so thrilled with the O.J. run-in, she posted pics and video.

We're told the crib used for the commercial is owned by Boyz II Men member Wanya Morris, who invited O.J. over for the day to hang. As for the commercial ... it was for a laser hair removal company -- L.A. Laser Hair Removal LV -- owned by Morris' longtime friend.

Simpson was NOT officially a part of the commercial, but he did get in a couple shots ... unclear if he'll make the final cut.

He's never met a camera he didn't love, though.

The Las Vegas shooter's 32nd-floor suite at Mandalay Bay is still completely shut off to the public, and in fact ... the whole floor's on lockdown.

One of our guys hit up the hotel Friday to check out the situation with Stephen Paddock's room after reports the hotel planned to never rent it out again. This video shows you can't even get close to the suite.

Elevators won't allow guests to get off on the 32nd floor, and security guards are stationed in stairwells to block access.

Law enforcement sources tell us Vegas PD completed the investigation of the suite, and they've turned it back over to the resort -- but it's clear Mandalay Bay's not ready to let morbid sightseers gawk at it.

Imagine Dragons' lead singer Dan Reynolds delivered a strong message of anti-terror in the aftermath of the mass shooting in Las Vegas ... their hometown.

The band performed Wednesday night in Chicago, and Dan paused to tell the crowd their tour has taken on a new meaning after the tragedy. He gave big props to all the fans who continue coming out to their concerts, and defiantly denounced all forms of terrorism.

He also reassured fans they would take every precaution to keep them safe.

Floyd Mayweather is telling his TMT bodyguards he's 100% retired -- and will NOT set up a rematch with Conor McGregor ... so says Floyd's hired muscle.

Of course, Floyd JUST posted footage from his boxing gym hitting the heavy bag -- and he looks pretty good. Plus, with all the money he made from the last fight, ya gotta wonder if he's thinking about a 51st fight.

So, when we saw Floyd's famous private security team, The Brixx Brothers -- Big G and Jizzy Mack -- we asked for the inside stuff with Mayweather's fight plan. They didn't exactly rule out a comeback.

BONUS -- With O.J. Simpson living just miles from Floyd's home in Vegas, we asked if Juice should look into private security too.