Hot Vegas

Celine Dion is making sure Lonely Airport Guy (LAG) won't be alone for the 4th of July ... because he'll be spending the holiday in Vegas with her ... and 4,000 other fans.

Our Celine sources tell us ... she's making good on her offer to Richard Dunn ... whom she invited to her show after seeing his hilarious lip-sync video of "All By Myself."

We're told Dunn and his wife will fly to Vegas for her Independence Day show at Caesar's Palace ... and Celine has graciously agreed to put them up at the hotel at her expense.

Best part ... we're told Celine wants to meet Dunn before the show!

Dunn tells TMZ he's "pretty blown away." Luckily, his heart will go on.

Celine Dion is offering free show tickets -- and a little companionship -- to a guy who turned a lonely night in the Las Vegas airport into a hilarious video.

If you haven't seen the clip (below) ... Richard Dunn is in the airport all alone, late at night, doing an incredible lip-sync version of Dion's "All By Myself."

Celine tells us ... she LOVED Dunn's performance. She even videotaped him a personal message ... telling him to look her up next time he's in town ... and making him a very personal offer.

Mischa Barton bucked the trend -- her entourage caused zero problems in an Atlantic City nightclub ... because TMZ has learned she rolled completely solo to host the event.

Barton was the celeb guest host for Pool After Dark last Saturday night at Harrah's Resort. A rep for the club tells us hosts usually have entourages 5-15 people deep, but the former "O.C." star thinned her crew down to a party of one.

Sounds like Mischa could've used a wingman -- we're told she stayed at the club until 3:00 AM, talked to no one, ordered a bottle of champagne and a bottle of tequila, and did shots ... by herself.

Barton did a court-ordered rehab stint in 2007 following a DUI, but has never claimed to be sober.

A source close to Barton tells us ... Mischa decided to attend last minute and opted to roll solo rather than miss the payday for hosting.

Nicki Minaj doesn't even have to sing to make bank -- sources tell TMZ Floyd Mayweather Jr. paid her $50,000 just to show her face at his daughter's 14th birthday party.

According to sources, Mayweather rented out the entire MGM ballroom in Vegas to celebrate Iyanna Mayweather's birthday last weekend -- and Nicki showed up to surprise her.

We're told Nicki stayed for about an hour -- hanging out with Iyanna, taking pics ... annnd that's pretty much it.

You'll recall, Iyanna's birthday party is essentially what set off the brawl between T.I. and Floyd -- after T.I.'s wife Tiny posted a photo of herself with Iyanna. Tiny was an unpaid guest.

Iyanna's pretty spoiled as far as celeb guests go -- last year, Justin Bieber showed up at her party. Just imagine what her sweet 16 will look like.

T.I.'s temper was already revved up just hours before he got into a violent brawl with Floyd Mayweather on the Vegas Strip -- when security at a crowded pool party DENIED his ass ... and it's all caught on video.

Witnesses tell TMZ T.I. had shown up to Liquid -- the pool party at Aria where Nicki Minaj was performing last weekend -- but he tried to side step security with his posse.

Security wasn't having it ... insisting T.I. had to be searched just like the normies entering the party.

The real problem -- we're told the door staff didn't recognize Tip ... and once they did realize it was him they let him right into the event.

But the standoff was intense -- Vegas PD even got involved -- and after watching the video, you'll understand why T.I. had a short fuse when he faced off against Floyd later that night. Pretty nuts.

TMZ has sources close to both T.I. and Floyd Mayweather and it's become very clear ... each side is telling a very different version of events surrounding the fight.

No one is debating what caused it -- as TMZ first reported, it was over T.I.'s wife Tiny -- but what is up for debate ... is who hit whom during the melee.

T.I.'s side: Our T.I. sources say the rapper swung and hit Floyd ... which is what sparked the whole brawl at Fatburger in Las Vegas early Sunday morning. T.I. even hinted at the punch in an Instagram video he posted the next day.

Floyd's side: The champ is telling friends T.I. never hit him with any punch ... he only tussled with members of Floyd's security team.

Hours after Floyd "Money" Mayweather Jr. and T.I. squared off over the rapper's wife ... Floyd sent a not so subtle message to T.I. ... "These hos ain't loyal."

Floyd joked to his pals that he dropped that pearl of wisdom on T.I. during their fight in Vegas. In the video ... you can hear he's playing off Chris Brown's hit "Loyal" ... which was blaring inside Larry Flynt's Hustler Club at the time.

Kim Kardashian and Kanye West's wedding may have been the biggest ... but we've got the lil'-ist.

Mini Kim and Mini Kanye tied the knot at Beacher's Madhouse Saturday at the MGM Grand in Vegas.

It was star-studded ... Mini Gaga, Mini Britney and Mini Miley all looked on as a mini-preacher officiated. Jeff Beacher was front and center throwing his weight around -- taking on the role of Rob Kardashian.

It wasn't a legally binding ceremony, of course ... it was all for show. Just like Kim and Kanye's.

Watch the video to see how Mini Kanye consummates the wedding.

T.I. wants to make it clear ... he can stand up to Floyd Mayweather Jr.

T.I. posted this video on Instagram after his fight with Floyd at a Vegas Fatburger early Sunday AM.

There were reports Floyd gave him 2 black eyes, but the video shows his lids are clear. His hand, on the other hand, is f-d up. It appears he'd like us to believe it's from whupping some Floyd ass.

Floyd Mayweather Jr. practices what he preaches ... hours after getting into a fight with T.I. and telling him to "control your bitch," the champ went to a strip club to show how exactly how HE exercises ultimate control.

Floyd showed up at Larry Flynt's Hustler Club in Vegas at around 3 AM ... this after getting into a now-epic fight with T.I. at a nearby Fatburger.

We're told Floyd showed up with "bricks of money" -- making it rain to the point where one stripper was seen carting her cash away in a pillowcase.

2 Chainz, Flo Rida and Benzino cheered on as Floyd did what he does.

Floyd Mayweather is NOT trying to get tricky with T.I.'s wife ... in fact, Floyd is telling friends he's shocked the rapper tried to pick a fight -- 'cause he thought they were all friends.

We're told Floyd never felt like there was any beef with T.I. -- nor does he want to be romantically involved with Tip's wife Tameka "Tiny" Cottle.

Our sources say Money is very upset over being falsely accused of any shenanigans -- and feels it was ridiculous for T.I. to get mad at him ... since it was Tiny's choice to hangout while in Vegas.

We're told Floyd's only motive was continuing his friendship with Mr. and Mrs. T.I.

T.I. never intended to get into a fight with Floyd Mayweather Sunday night in Las Vegas ... sources close to the rapper tell TMZ -- but Tip was definitely pissed about Money possibly getting close to his wife.

Tameka "Tiny" Cottle didn't appear to be near the fight last night -- but she was in Vegas -- and hours before posted a picture on Instagram while hanging out with Floyd's daughter ... calling the young girl her "new boo."

We're told T.I. was upset about the photo -- and others she posted -- and felt it was disrespectful to him ... so he planned to confront Floyd in person.

Once they got face-to-face though, T.I. flipped out when Floyd said "control your bitch" and started swinging outside Fatburger.

Johnny Manziel went WILD in a Vegas nightclub last night -- partying his face off and spraying champagne like he just won the Super Bowl ... and TMZ Sports has the footage.

Manziel rolled into Surrender nightclub at Encore at Wynn Las Vegas just after midnight ... and got turnt ALL THE WAY UP -- partying with a crew of 4 dudes and 8 smokin' hot chicks.

Sources at the club tell us ... Johnny started off with Belvadere vodka before turning to champagne -- and the started pulling bubbly right from an expensive bottle of Dom.

We're told Johnny noticed Diplo from Major Lazer in the house (apparently, Johnny's a big fan) ... and called him to party together. As one source put it ... "They went nuts!"

Hey, season doesn't start 'til September ... plenty of time to shake off the hangover.

T.I. took a swing at Floyd Mayweather Jr. and it caused a chair-tossing brawl in the Fatburger on the Vegas Strip early Sunday morning ... TMZ has learned ... and we've obtained multiple videos.

According to several witnesses ... Floyd was eating inside the restaurant when T.I. walked up and started jawing at Floyd.

It's unclear what caused the beef, but we're told T.I. swung at Floyd ... their giant bodyguards jumped in to separate them ... and then the all out melee began.

At one point you hear Floyd telling at T.I., "control your bitch."

Las Vegas PD arrived just as Floyd was leaving and we're told T.I. was already gone.

Police confirm a Fatburger employee was slashed during the fight, but he refused treatment and did not want to cooperate with investigating officers. In other words ... no snitching.

A rep for T.I. had no comment about the fight.

Less than a month ago, T.I. and Game were in the middle of a near riot with LAPD officers outside Supperclub.

17-year-old Michael Jackson fan Brett Nichols didn't just win his school's talent show with his MJ routine ... he caught the eye of MJ's estate ... who have invited the kid to Las Vegas for a show ... TMZ has learned.

A rep for the Jackson estate tells TMZ ... the executors saw Nichols' impressive performance and were blown away ... so they put together a package to send to Nichols to show how much they liked his act.

The rep says they sent Nichols the new MJ album "Xscape" (no iTunes cards?) and an invitation for Brett and his family (mom, dad and sister) to all attend a performance of Michael Jackson ONE in Las Vegas.

We're told they contacted Nichols' principal, who in turn told Nichols and his family this afternoon ... who were predictably beyond excited.

Much better than some stupid trophy.

Britney Spears just surprised the newlywed bride who became a viral video star -- thanks to Brit's music -- with an awesome wedding gift ... backstage passes to meet Britney in Vegas.

Sources connected to Stephanie Huntington and her husband tell us Britney's people reached out to Stephanie after seeing the popular video from their wedding reception ... where Steph's Man of Honor leads a full-blown dance performance of "Work, Bitch."

We're told Britney's manager invited Stephanie and two friends to a surprise meet-and-greet last weekend ... where Brit took the optimistic step to invite herself to Stephanie's 10-year anniversary party.