Hot Vegas

Olympic gold medalist and failed reality star Ryan Lochte still has tons of cash -- or maybe just sucks at math -- because he just dropped a 200% tip at an expensive Las Vegas steakhouse ... TMZ has learned.

Sources at Andiamo Italian Steakhouse in the D Casino & Hotel tell us, Lochte stopped by with a bunch of dudes Wednesday night and ran up a $314 tab -- on top of which Lochte added gratuity of $606, for a grand total of $920.

We're told Ryan -- whose reality show "What Would Ryan Lochte Do?" was canceled after one season -- asked all the waiters to split up the ridiculously generous tip evenly.

But we know ... you're still wondering why Lochte's pockets are so damn fat?

Our sources say he had just won big at the roulette table before dinner and was feeling pretty flush. Ain't no money like house money!

Chris Brown has become a Halloween nightmare for 2 big nightclubs that now have anger issues of their own ... because Brown has bailed on them.

Chris was booked to host a party at the Conga Room in L.A. tomorrow night, followed by another hosting gig Friday with GF Karrueche at Haze nightclub in Vegas.

We've learned both clubs just got word Chris will be a no-show. As TMZ first reported, the singer will stay put in a Malibu rehab joint for up to 3 months so he can deal with his anger issues.

But here's the thing. Even Karrueche bailed.

The show at Haze will go on. As for the Conga gig, the event has been cancelled.

Britney Spears is already picking up some Vegas hangers-on … ‘cause Mini-Britney is launching her own rival act on the Strip -- and TMZ has learned it’s opening the same night as big Brit's show.

Sin City sources tell us ... Mini-Brit, aka Elena Gant, is steppin’ up large ... kicking off a new show at Beacher’s Madhouse in the MGM Grand Hotel on Dec. 27th… the same night Spears opens at Planet Hollywood.

And 12" isn't the only discrepancy between the ladies (5'4" to 4'4") -- Britney is set to rake in about $310,000 per show … while mini-BS will make a slightly shorter stack of $310 per night.

Still undecided about which show to check out? If you order an expensive bottle of booze at Mini-Britney's gig … a little person flies out of a stuffed elephant’s BUTT to deliver it to you.

Stay classy, Vegas.

One day Pauly D will tell his daughter the heartwarming story about that time he had a drunken, condom-less one night stand in Las Vegas ... with her mom.

Ok, maybe not so heartwarming.

Hours before Pauly D knocked up Amanda Markert, they were both raging at a crazy pool party in Vegas ... and TMZ has several pics of the boozy scene right before the drunken conception.

The two met at the legendary Rehab pool party at the Hard Rock Hotel in the summer of 2012 ... Pauly was working the DJ booth and Amanda was partying her face off in a smokin' hot bikini.

At one point during the party, Amanda somehow got on stage (probably because she's hot) ... and sprayed down the crowd with a bottle of champagne. Later she was seen double-fisting novelty-sized cocktails.

Soon after that, she got some one-on-one time with Pauly -- and 9 months later she gave birth to his daughter. A true love story ...

But the connection they had in Vegas stayed in Vegas ... 'cause now Pauly and Amanda HATE each other's guts and are at war over custody and child support.

Vegas baby, VEGAS!!!

Pauly D got famous in New Jersey, but he wants to stay as far away from The Garden State as possible when it comes to deciding who gets custody of his kid.

According to legal docs -- obtained by TMZ -- Pauly and his baby mama, Amanda, are in a dogfight over which state should handle their custody case.

Pauly wants Nevada to handle it, but the former Hooters waitress wants a Jersey judge to pass judgment ... and we know why.

Nevada judges are more likely to give the father custodial rights than Jersey jurists. In Nevada, there's a presumption that both parents should get joint custody. There is no such presumption in Jersey. Now as we reported, Pauly wants FULL custody, but having joint custody as a fall back is better than nothing.

There's also an issue of convenience. Pauly lives in Vegas and he doesn't want to have to make the trek to Jersey every time there's a court hearing.

Here's what's ironic: If Pauly gets his way and the case is handled in Nevada and the judge awards joint custody, he'll probably end up paying MORE child support than if the case was handled in Jersey -- that's just the way the law works. But sources tell TMZ ... he knows he'll end up paying more child support but getting custody is way more important to him.

Pauly D's bloodline will live on, because he has a little girl crawling around -- near the Jersey Shore ... TMZ has learned.

Here's what we know ... The mother is 25, born in Jersey but she met Pauly in Vegas last year. We're told they hooked up while he was DJing in Sin City.

The baby is a few months old, living with her mom.

The mom has filed court docs in New Jersey to formally establish paternity, but we've learned Pauly has already taken a DNA test and he's the dad.

Pauly tells TMZ, "I'm proud I'm a father. I am excited to embark on this new part of my life."

A shooting at Drai's nightclub in Las Vegas this morning has left at least 1 person dead and 2 others injured ... TMZ has learned.

Here's what went down ... witnesses tell TMZ a person, who appeared to be a white male, was loitering in the cashier area of the famous after-hours club around 5:45 AM.

When the man was approached by a club employee and asked to move, the suspect pulled out a gun and started yelling back at the staff.

One witness tells us someone in the area (not a member of the security team) tried to apprehend the suspect ... and that's when shots began to ring out.

We're told at least one person died from a gunshot and at least 2 others were injured.

The man was eventually taken into custody.

Drai's has been a staple in Vegas for years -- and has been popular with huge stars like Paris Hilton and Nick Cannon.

There are conflicting reports out about ticket sales for Britney Spears' Vegas concerts ... some are saying sales are disastrously poor ... Brit's people are saying "it's the best-selling show in the history of Vegas." TMZ now has the numbers, and it's pretty clear -- Britney is about to own Vegas.

Britney will be performing 48 shows a year for the next 2 years -- according to the contract obtained by TMZ. Tickets are available now for the first 16 shows. We've been on dozens of calls with StubHub, Ticketmaster and Planet Hollywood's box office among others ... and here's what we're told.

For the first 16 shows ... a total of 73,600 tickets were up for sale. The number of tickets actually sold is impressive -- 70,242.

Of the available, remaining, 3,358 tickets, 2,887 are in the nosebleed section.

We can't vouch for this being the best selling show ever in Vegas, but it's definitely up there.

Kevin Federline is crapping on Britney Spears' bright idea ... to put one of their sons on stage during her Las Vegas show, essentially saying, "Over my dead body."

When Brit announced her Vegas extravaganza she said 8-year-old Sean Preston would "probably be on stage" ... making surprise appearances from time to time.

Apparently K-Fed was not consulted ... and he made it pretty clear to us yesterday he's not keen on the idea. BTW, his opinion matters, since they share joint custody.

As for checking out Britney's show in Vegas ... K-Fed says he'll take a pass, because he's got better things to do in Sin City.

A famous Las Vegas pool party must have a very relaxed no-pee policy ... because R. Kelly was invited to perform there over the weekend.

Wearing a Jesus piece that would make Flo Rida jealous, the "Ignition" singer (and alleged underage pee fanatic) dropped some tunes at the Rehab Pool Party at the Hard Rock Hotel on Sunday, and the crowd went bananas.

Of course the truth is, if you're going to piss in public ... there's pretty much no safer place than a Vegas pool.

Everybody does it.

Miley Cyrus broke down crying in Vegas yesterday ... while she performed a song rumored to be about her break up with Liam Hemsworth.

Miley twerked it up on stage at the iHeartRadio Music Festival -- but the tears started flowing hard once she began singing "Wrecking Ball."

As we previously reported -- the couple has called it quits ... and Liam has gotten tight with telenovela actress Eiza Gonzales -- who BTW is crazy hot.

Despite the cry-fest ... Miley cleaned up for her second performance of the night.

And wore this.

Justin Timberlake and Ben Affleck ... more enticing than money.

Take a look at the pic on the top... the casino floor at Planet Hollywood Wednesday.

Now take a look at the pic on the bottom ... snapped 2 minutes later.

The cause of the cluster -- Ben Affleck and Justin Timberlake, who were there for the premiere of their gambling flick, "Runner, Runner."

Zac Efron did NOT go to rehab for alcohol abuse -- it was far more serious, because multiple sources tell TMZ he had a serious cocaine addiction.

Zac completed his stint in rehab earlier this year. We're told the problem spiraled out of control during the filming of Seth Rogen's movie "Neighbors," which was shot during a narrow time frame beginning in April.

Sources tell us Zac -- who also starred in the movie -- was a no-show on a number of days. As one source connected with the film tells us, "It was common knowledge he was struggling with cocaine."

Three other sources confirm ... Zac's problem was rooted in cocaine, but say he also dabbled in Molly -- a pure form of Ecstasy, and a popular drug in clubs and raves.

We're told ... early this year, Zac and some friends went on a coke rager in a room at the SkyLofts at the MGM Grand in Vegas ... and caused around $50k in damage. No word on who took care of the bill.

We contacted Zac's rep ... she said, "Don't think we'll be making a comment."

Everything about Britney Spears' pre-dawn dog and pony show to announce her Las Vegas shows was absolutely perfect!

If you consider air sickness from a hellish helicopter ride ... perfect. And who doesn't?

Britney Spears got off to a shaky start for her Las Vegas debut -- she got sick on the chopper ride for her big announcement.

Britney didn't say if "sick" meant hurled ... but it's a reasonable conclusion. She wore gigantic sunglasses in the dark night as "GMA's" Sam Champion tried to get her animated.

So here's the lowdown ... Brit opens Dec 27 at Planet Hollywood. TMZ broke the story ... she'll be pulling in nearly $15 mil for 48 concerts a year and it's a 2-year deal.

Ticket prices are pretty reasonable -- $59 - $179.

Now this is interesting ... Champion asked her about possibly living in Vegas and Brit was sketchy. Our sources (and obviously they're good) tell us ... Brit will "absolutely not" be living in Vegas. She has no plans to get a house there. "It's strictly in and out," said one source involved in the concert ... partly because she doesn't want to disrupt the kids during their school year.

We're told Planet Hollywood will make a gigantic suite available on the 52 floor. There are several of these mega-suites available on the 51 and 52 floors ... People at the hotel call it the 5152, which is interesting. Brit knows something about that ... minus 2.