Shark Tank

We hit up famous TV 'Shark' Daymond John for a round of STREET "Shark Tank" ... and we got to make 3 pitches.

Two of 'em were DOA, but Daymond thinks the one about a fame hungry family willing to do anything to make it in Hollywood ... just might have legs. IF their legs have an ounce of talent.

Jennifer Love Hewitt's face is getting spread all over the Internet and she ain't happy about it -- she is suing the company using her image to promote a product the "Shark Tank" investors called a total "scam."

The product is called Slim Spray ... which claims to be an oral vitamin spray that will boost your energy and shed pounds. According to the lawsuit ... J.Love's face and bod have been attached to spam ads (you might have one in your inbox right now) that make it look like she endorses the stuff.

Jennifer claims she's worked too hard to develop her "stellar reputation and credibility" to have it all blown by Slim Spray -- and says she never authorized the company to use her image.

As for the photo of her holding the product -- she implies someone put it in her hand on a red carpet event, snapped a pic ... which ended up on Slim Spray's website and ads.

In the docs -- filed Wednesday in L.A. -- she points out the "Shark Tank" crew dismissed the spray as nothing more than a "hustle."

Mark Cuban tells TMZ Sports he does NOT believe Donald Trump can afford to purchase the Buffalo Bills all by himself ... a statement that Trump says is DEAD WRONG.

Trump also says Cuban's a "lightweight whose net worth is a fraction of mine" ... and claims he has first-hand knowledge that Mark sucks at golf.

Mark Cuban wasn't joking when he promised a "Shark Tank" entrepreneur he'd get his product into Mavs gift shops -- 'cause TMZ Sports has learned U-Lace is planning to drop at American Airlines Arena beginning next season.

We spoke with Tim Talley -- who got Mark to invest $200k into his customizable shoe lace business on a recent episode of "Shark Tank."

Talley says sales have exploded since Mark came aboard -- and so far, Cuban has been dead serious about delivering on the promises he made on the show, starting with the plan to sell at Dallas Mavericks team shops.

"We'll likely get the laces into the arena early next season," Talley says ... adding that U-Lace is also gunning for deals with other NBA teams ... as well as organizations in the NFL, MLB and NHL.

Talley says the company is also developing shoes to go along with the laces.

Makes sense to us.

Levin made an emotional pitch to Daymond John, one of the sharks from "Shark Tank" on TMZ Live, offering a 5% cut for $500k. The question -- Was Damon buyin' what Levin's sellin'?

Daymond John and Robert Herjavec, two of the money guys from “Shark Tank” are at the center of a massive $50 million lawsuit ... involving a pissed off "shark" wrangler, TMZ has learned.

A Personal Injury lawyer in Florida – Bobbie Celler – claims he hired John and Herjavec as experts to speak at an upcoming event called the "Shark Tour" -- an expo for people trying to start their own businesses.

In his lawsuit, Celler says John and Herjavec pulled out of the event just one month after they signed contracts to appear. -- and Celler says he smells something fishy.

According to the suit, filed in Florida, BC is convinced Daymond and Robert were coerced to withdraw because of “internal pressure” from Sony Pictures Television, one of the companies that produces “Shark Tank.”

Celler -- who says he's in the process of securing a trademark for Shark Tour -- suggests Sony meddled with the deal because it doesn't want anyone to think the Shark Tour is in any way affiliated with "Shark Tank."

Celler is NOT suing Daymond or Robert -- instead, he's going after Sony for tortious interference with a business relationship ... and he wants $50 mil to make things right.

With a combined estimated net worth approaching $700 million ... Daymond John, Barbara Corcoran, Kevin O'Leary and Robert Herjavec (aka the cast of ABC's "Shark Tank") took in the rides at Disneyland yesterday with their families.

If Taylor Swift seems a little more like a black superhero this morning, it's because she got the SHAFT in her $17 million Rhode Island mansion ... this according to "Shark Tank" star Barbara Corcoran.

Barbara -- a stone cold PIMP in the New York real estate scene -- was at a small business summit at the Omni in D.C. when we asked if Swift got ripped off when she purchased a massive 11k+ square-foot mansion in the Ocean State.

Barbara's response? Let's just say this shark can bite.