Money

Justin Bieber took on Kevin Hart in a charity tennis match yesterday ... with Will Ferrell acting as line judge. Here's what we learned:

-- Kevin Hart sucks at tennis
-- Justin Bieber sucks less
-- Will Ferrell didn't play because he has an inflamed buttock

It was actually a pretty cool event ... the 11th annual Desert Smash in La Quinta, CA to raise money for Cancer for College, which provides college scholarships to cancer survivors.

Check out the clip ... you can see Bieber vs. Hart ... with Ferrell roasting the athletes during the match. Funny stuff.

But one of the most interesting parts of the day ... Bieber was partnered up with Canadian tennis pro Genie Bouchard (pictured below).

Of course, you probably remember Bouchard as the 21-year-old tennis hottie who made headlines last year during a post-game interview when she said Bieber was her dream date.

So, what happened when they were partnered up? They high-fived a lot, they posed for pics together and they seemed to be getting along ... but so far, no word on what happened after the game.

Wiz Khalifa and Tyga's exes refuse to take a back seat to them when it comes to making exotic dancer support payments (just sounds classier) -- cause Amber Rose and Blac Chyna went big in an L.A. strip club.

The girls hit up Ace of Diamonds in Hollywood Monday night ... the same club where Wiz went crazy a few weeks earlier. Once inside, Amber and BC bumped and grinded with some of their ex comrades-in-lucite.

Our sources say both women were paid for their appearance at AoD -- though it's unclear how much ... some of it went back to the employees. We're told they rained $10K on the strippers ... right on par with what Wiz and his crew spent.

Gender equality exists in strange places.

Taylor Swift put her famous (and possibly extremely valuable) gams on full display in Los Angeles for a shopping trip down Melrose Avenue.

According to a report, Swift and her team explored the possibility of insuring her legs against possible injury and learned they were valued at $40 million.

Nick Cannon got run over by the Mariah Carey express, because their business manager let her drive the train on the sale of their mansion ... while he was kept 100% in the dark ... according to Nick.

According to a new lawsuit ... Cannon says he never authorized the $9 million sale of the Bel-Air home he and Carey used to share, and believes biz manager Michael Kane was dealing exclusively with her people on the deal. He says he didn't find out about this until after the fact.

But the house isn't the issue -- Nick's cool with the sale -- he says the problem is Kane failed to keep him in the loop from start to finish. He's most concerned about how funds from the sale will be divvied up.

Nick wants the bulk of the $9 mil frozen until he gets a detailed accounting to determine how much cheese he's getting.

Sean Kingston just bought some expensive jewelry ... against his will. Let's just say it's a court-ordered purchase.

Sean skated off with $226k worth of jewelry from 2008-2013 but never paid a dime ... this according to Avi Da Jeweler who filed a lawsuit against Sean.

The singer's rep told us last August ... Sean coughed up more than $300k and had the cashed checks to prove it.

If that were so, it should have been easy to win the lawsuit, but Sean never filed an answer so the judge just issued a default judgment, to the tune of $356k.

As puzzling as it is that Sean never produced the checks, it's just as puzzling why Avi kept giving the dude jewelry when he wasn't paying jack.

We've reached out to his rep but so far no comment.

One of the women Warren Sapp allegedly paid for "sex acts" on the night after the Super Bowl has pled NOT GUILTY to misdemeanor prostitution ... TMZ Sports has learned.

As we previously reported ... Sapp told the Phoenix PD he paid Britney Osbourne and Quying Boyd each $300 to come to his hotel room and perform "sex acts" on him on February 2nd.

Sapp said Osbourne performed oral sex on him (and he recorded it on his cell phone) ... but things went south when he asked for vaginal sex and she demanded more money.

Osbourne was later charged with prostitution. If convicted she could do time behind bars.

As for Boyd, she was charged with not having proper escort identification ... and she has also pled not guilty. She faces a fine if convicted.

Warren was charged with two counts of assault (for allegedly attacking Osbourne during the vaginal sex dispute) and one count of soliciting prostitution. If convicted, he faces up to six months in jail.

Sapp is due back in court later this month.

NFL player Kareem Jackson spares no expense for his feelings ... 'cause the Houston Texans star paid over $15k for a tiny blinged-out replica of his favorite pair of cleats ... and they're pretty freakin' awesome.

We spoke with the guys down at AJ's Jewelers in Miami who tell us Jackson made a special request to transform his Nike Vapor Cleats into a miniature charm he could rock around his neck.

That's when they sprung into action ... taking over three weeks to create a VVS diamond-encrusted, 3D version of the shoes ... and when all was said and done, the pieces were worth more than $15k.

FYI -- AJ's has also created some pretty sweet stuff for other NFL stars ... including iced-out mini-jerseys for guys like T.Y. Hilton and Michael Huff.

"Princess Bride" star Cary Elwes got right up to the altar with the guy who was going to buy his Malibu home, and then jilted him -- so now he's getting sued for backing out on the sale.

According to the docs ... Tris Felder says Elwes agreed to sell the pad to him for $1.7 mil -- but when it came time to deliver the $51k deposit ... Elwes rejected it and called off the whole deal.

In the suit, Felder admits he doesn't have a signed purchase agreement -- but says Elwes did sign the counteroffer letter ... and that's enough to make the sale legit. If he doesn't get the keys ... he wants at least $500k in damages.

Chris Brown is headed for family court, where his baby mama is now in danger of raking in a lot less in child support because of her big mouth.

Sources connected with Brown tell TMZ ... the singer didn't know he was the father of 9-month-old Royalty until last month, when Nia Guzman dropped the news. We're told Chris quickly made a deal with her where he would pay monthly child support.

Our sources say Chris is forking out substantially more than he'd be required to pay if a judge ordered formal child support. There's a scale on how much a parent pays, based largely on income. We're told Chris upped that amount and in return demanded that she keep her lips sealed.

Soccer star Sydney Leroux made a case for wife of the year before she was even married ... designing a $20k wedding band for her hubby (lucky bastard) ... and TMZ Sports has photos of the bling.

Sydney tied the knot with men's footie stud Dom Dwyer earlier this year and started forever off right by spending $20k with L.A. jeweler to the stars Big O to create a platinum and diamond monster.

The ring is14mm wide and features 97 baguillion and round brilliant diamonds that are actually cut to mimic the octagons on the side of a soccer ball.

Big O tells us that Sydney was very involved in the design -- and made it clear from the start she wanted more than the traditional men's wedding band.

No word on what Dom is getting Sydney for her birthday this year but we know this...

Kabbalah has led Madonna to the Holy Land ... the Material Girl is designing a massive two-story mega-retreat perched atop a soaring Tel Aviv skyscraper.

Sources close to the deal say Madge's nearly 2-year wait is over and she is finalizing the details on a completely customized 12,000 sq. ft. condo towering high above the White City -- all for a cool $20 mil.

If the 360 degree view of the Mediterranean from her rooftop pool isn't vogue enough ... we're told she's outfitting her 2-floor crib with a first-class gym, and a sprawling living room. The crib is prime real estate ... sitting atop a 42-story tower designed by renowned Getty architect Richard Meier.

She'll have some famous neighbors ... Scott Disick recently scored a Tel Aviv condo and Ashton Kutcher and Mila Kunis are also rumored to be hunting for a hideaway there.

We reached out to mega-realtor Tomer Friedman who reps the building ... so far no word back.

Mazel tov, Madge!

3:00 PM PT -- Sources close to Madonna tell TMZ it is absolutely false, she is not buying anything in Israel.

Drake will be performing in 8 cities beginning in May ... sounds awesome, except we found out it's a scam.

A promoter is advertising the tour ... but not with Drake's permission. The rapper is NOT performing at any of the venues this spring and is asking his fans to call the cops if they got duped into buying tickets.

The scam is no small potatoes ... we're told in Miami and Houston, ticket prices are upwards of $350 a pop and people are falling for it.

Mike Tyson has finally weighed in on the fight of the century ... telling TMZ Sports he likes Manny Pacquiao to beat Floyd Mayweather on May 2nd.

But when it comes to putting his money where his mouth is ... don't expect Tyson to make a 50 Cent style $1.6 MILLION bet on the fight.

"I don't have the money!"

Tyson's never been shy about his financial situation -- he made more than $300 MILLION during his boxing career ... only to end up broke.

But now, Mike's way more responsible when it comes to his cash -- and plans to hold on to it by not making crazy bets.

If Will Smith, Leonardo DiCaprio or Rihanna want FREE seats to the Manny Pacquiao-Floyd Mayweather fight -- it'll be no problem at all -- as long as they're down to be a walking billboard.

Tickets are in such high demand, fight promoters aren't handing out comped front row seats to high profile stars like they usually do. Instead, they'll be forced to pay up to $100k or more ... just like normies.

But we've learned there's another option. If a celeb is willing to endorse companies by wearing logo-emblazoned gear at the fight -- that company will eat the ticket cost.

For instance, we're told VOCO Vodka & Coconut Water has already made such offers to Leo, RiRi, and Big Willie ... in exchange for front row seats.

We know what you're thinking, but sorry ... you in a VOCO cap just ain't the same as Rihanna in one.

Enjoy the PPV.

Adam DeVine lost more than a vehicle during a break-in at his home last weekend ... there's also an antique gun missing ... according to our DeVine family sources.

Law enforcement sources tell TMZ, DeVine's L.A. home was broken into over the weekend and the crooks made off with his brand new truck. We're told there was no surveillance video and right now police have no leads.

DeVine family sources say they are most upset about cops finding an empty gun case ... meaning one or more of DeVine's weapons was also jacked. We're told DeVine has an antique pistol in his collection that his parents bought for him in Deadwood, SD and he's pretty sentimental about it.

The "Workaholics" and "Modern Family" star is clearly pissed ... tweeting, "Luckily it's just stuff and no one was hurt but it just sucks that I work so hard to buy cool stuff and you just steal it because you have no ambition and are too stupid to earn enough money to buy nice things."

Nick Cannon is becoming a bridge and tunnel kind of guy ... moving to New Jersey where the twins will have 2 lush acres in which to roam.

We're told Nick strategically picked Saddle River -- 1 hour out of NYC -- to keep the 3-year-olds out of the spotlight. Fact is ... it would be hard to find the equivalent in the City. The house has 6 bedrooms, 8 baths, a private lake, and on and on.

Nick's renting to own, but not because he can't cut it. He'll pay $11k a month with an option to buy the $3 mil estate, assuming he likes it enough.

The house will not have Mariah's ornate touches. Nick's mom will help him decorate ... after his escapades a few weeks back, we're guessing there might be some Jamaican influences.