Hayden's New BF -- Closer in Age & Height

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Since breaking up with her super-sized 35-year-old ex Wladimir Klitschko, Hayden Panettiere has moved on to a shorter, younger man ... NY Jets wide receiver Scotty McKnight.

Hayden and her 5'11, 23-year-old baller were spotted at Mel's Diner in West Hollywood on Thursday.

The 21-year-old blonde has gone from giants to Jets.

Simon & Paula -- The Kiss Factor

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As if all their "American Idol" squabbles never happened, Simon Cowell and Paula Abdul gave each other a big wet kiss on the lips as they arrived to "The X-Factor" auditions in New Jersey on Thursday.

With temperatures hitting triple digits, the good pals turned up the heat even more.

Bret Lockett: Kim K Is LYING, We HOOKED UP

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NFL player Bret Lockett says he's not afraid of Kim Kardashian's legal threats -- telling "TMZ Live" he has CONCRETE PROOF the two hooked up while Kim was dating her fiance Kris Humphries.

TMZ broke the story, Kim threatened to sue Lockett and In Touch Weekly for defamation -- over a story in which Lockett claimed Kim's been cheating on her fiance Kris Humphries ... with him.

Lockett claims he has phone records, text messages and very personal cell phone pics of Kim -- and if push comes to shove, he's willing to present the evidence in court.

Barb

Hey, he never said they hooked up in person. Maybe it's an imposter sending pix and texting. Well, it's something to consider. Right? OK, she's probably lying.

Kiko

Did you know that Bret Lockett has only 7 more career tackles than Kim Kardashian? Just one good game against the Carolina Panthers and Kim K. could catch up to him.

yomama

Ahhhh....how very entertaining. Someone please pass the popcorn.

Gerard Butler Gives Jessica Biel a Ride

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Jessica Biel jumped on the rumored hookup bandwagon by wrapping her arms around Hollywood womanizer Gerard Butler while on a motorcycle this weekend.

The cool riders played it safe by wearing protection as they rode down the Pacific Coast Highway.

While neither has confirmed the relationship, Biel's ex Justin Timberlake has been linked to everyone from Olivia Wilde, Ashley Olsen and Mila Kunis.

Mark Sanchez: I PROMISE I'm Not Dating Hayden P

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New York Jets quarterback Mark Sanchez knew the question before we even asked it ... and he gave us a straightforward answer -- he is NOT dating Hayden Panettiere.

Not only did Sanchez assure us he and Hayden were just friends, he also said he had head coach Rex Ryan's full support for hitting up the fast food chain In-N-Out Burger with the actress last week.

In a cryptic tease ... Sanchez hinted that he would explain the REAL reason he was out with Hayden in the very near future.

We're waiting ...

Mark Sanchez & Hayden P The Burger Date

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New York Jets QB Mark Sanchez and newly single Hayden Panettiere sparked dating rumors after leaving an In-N-Out Burger in Laguna Hills together this weekend.

While neither has confirmed the relationship, the "Scream 4" actress recently split from boxer Wladimir Klitschko.

One thing's for sure, Hayden definitely likes to super size it.

Leo and Blake 100% PROOF Positive ... Mostly

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We got the photo evidence Leonardo DiCaprio and Blake Lively were absolutely, positively ... at the same party in France! So, Leo's definitely dating her ... or some other woman.

Check out TMZ on TV -- click here to see your local listings!

Bieber and Gomez CRAZY Young Love

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Justin Bieber and Selena Gomez are getting a head start on their summer lovin' -- because the two pop stars can't keep their hands (and lips) off each other in Hawaii.

Check out TMZ on TV -- click here to see your local listings!

Justin & Selena -- The Maui Make-Out Sessions

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Teen lovers Justin Bieber and Selena Gomez didn't let jet skiing or parasailing get in the way of their very public displays of face sucking in Hawaii this week.

Justin got frisky grabbing Selena's ass and kissing her every chance he got while on vacation in Maui.

They've come a long way since their first public peck at the Billboard Music Awards just this past Sunday.

Justin Bieber & Selena Gomez -- The Shirtless Pic

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Showing off his shirtless torso, 17-year-old Justin Bieber basked in the Hawaiian sun with his older girlfriend Selena Gomez on Tuesday.

Justin better use protection ... on his fair skin.

Justin Timberlake & Olivia Wilde Party Together

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After hosting "SNL," Justin Timberlake was spotted hanging out with his rumored new lady friend Olivia Wilde at the show's afterparty in NYC.

JT likes to go Wilde every now and then.

Arnold's Baby Mama MANEATER!

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No one in Mildred Patricia Baena's family was surprised when they found out she was the mother of Arnold Schwarzenegger's love child ... because, well, she liked the fellas.

Sources very close to Baena tell TMZ ... she was extremely aggressive when it came to chasing men -- like a heat-seeking missile. They say her flirting was often "inappropriate," but her tactics frequently worked -- at least short-term.

Our sources says Baena almost always made the first move -- going after whomever she wanted -- and Arnold was no different.

We're told when news of Arnold's affair with a household staff member broke, but before the baby mama was named, Baena's friends and family knew it was her.

'Hook' Star Hopes Online Dating Pans Out!!!

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The adorable, chubby kid who played Thud Butt in the 1991 movie "Hook" is looking for love on an Internet dating site -- and TMZ has learned he's using his Lost Boy fame to help score himself a lady.

TMZ spoke with 29-year old Raushan Hammond -- who confirmed he has an active dating profile on the website PlentyOfFish.com.

Check out his opening line -- "Most know me as starring in a film called "HOOK" as the chubby lost boy who turns into pan at the end."

Apparently, a little self-promotion goes a long way -- because Raushan tells us he's been getting a pretty good response from potential lady friends.

Think happy thoughts ...

Lindsay Lohan -- I'm Still Into Boys, Too

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Lindsay Lohan hasn't completely given up on men yet ... cause yesterday, LiLo told an Australian radio show she would absolutely consider dating a guy again.

LiLo went on "The Kyle and Jackie O Show" ... when Kyle said, "We'd love to know whether you're like a lesbian or whether you're a bi ... 'cause boys wanna know if they still have a chance ... have we still got a chance?"

Lindsay's response -- "Yes."

Lohan also opened up about a range of other topics in her life -- including her dating life, community service, and that infamous white dress she wore to court in February.

Arnold's Mistress: I Want to BE Maria!

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Maria Shriver had a secret admirer -- problem is, it was the chick who was banging her husband.

Mildred Patty Baena had an obsession with Maria ... sources close to the Schwarzenegger's former housekeeper tell TMZ. We're told Patty felt she was naturally "gorgeous" and wanted to look just like Maria.

Toward the end, our sources say Patty would dress in Maria's clothing and even wear her jewelry around town. We're told Patty once confided that Maria noticed on one occasion that a piece of jewelry was missing and interviewed the staff about it. We don't know if the jewelry resurfaced.

And get this -- Patty would go to Maria for "love advice" as well as advice about her pregnancy and Maria graciously offered her counsel.

And there's more. Patty confided in a friend -- when Maria would leave the house in the morning, she would crawl into the marital bed and do the deed with Arnold. She once even bragged that she was more of a wife to Arnold than Maria because she was always there for him.

Arnold Schwarzenegger Courting The Housekeeper

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Three years before she gave birth to his child, Arnold Schwarzenegger was bumpin' and grindin' with his maid Mildred Patty Baena at a private party in the actor's home ... and TMZ has the photo.

The picture, featuring the two dancing in front of a live mariachi band, was shot back in November 1994 ... around the same time "True Lies" and "Junior" came out in theaters. We're just sayin' ...

Still, we gotta ask ...