It all started with a blind item about a musician dating a reality star - and for days it's been rumored that Jen Aniston's ex has been in a secret relationship with The Hills' vixen Kristin Cavallari...

So is it true? Not according to John Mayer's hilaaarious Tweets! Check 'em all out below:

"Rumor control: How do I put this like a gentleman... I have never high-fived Kristin Cavallari with my penis."

“I’m sure she’s a wonderful gal but we have never tasted the Skittles Rainbow together."

“My Milli has never slam danced with her Vanilli.”

“I have never Bensoned her Hedges, nor have I attempted to Bartle her James.”

He's quite the wordsmith! But is he telling the truth or just being the joker he always is?

And where's Kristin's denial!

Kate Beckinsale attended the premiere of Whiteout in Hollywood last night, and even though we're not 100 percent loving her halfassed hairdo, everything else looks amazing! From the simple makeup to the bold gold jewelry to her shiny nail lacquer, we're loving this look! So...what about that film? We watched the trailer the other day and we can't tell if it's really scary or incredibly confusing...

Aha! We first told you about Jennifer Aniston and Gerard Butler getting cozy almost exactly a year ago to the day, and it looks like the kissing co-stars STILL have something going on!

Last night Jen and Gerry snuck into Cliff's Edge in Silverlake around 9:30pm, and the lovebirds enjoyed a romantic meal and didn't leave until nearly midnight! X17 photographers on the scene tell X17online exclusively:

"Jen and Gerard sat at a table in a darker area of the restaurant, and they appeared incredibly affectionate with one another. They were kissing, hugging and leaning in to talk to each other for over two hours! They definitely looked like a couple, and when they left, Gerard seemed cool with everything, but Jen made every effort not to be seen!"

When it was time to call it a night, Gerard left in his white Mercedes SL, and a few moments later Jen and her bodyguard emerged, but when Jen slipped into her car, she ducked behind the passenger seat in an attempt to hide from photogs. Jen's boydguard drove her home and Gerard went to another house afterwards, but we're guessing the next time we catch these secret lovers out and about, they'll reunite at Jen's for a sexy slumber party!

Michael Jackson fans will get their first look at the trailer for This Is It at the 2009 MTV Video Music Awards this Sunday.

The documentary was put together from over 100 hours of behind-the-scenes footage, and it chronicles the last three months of the pop icon's life as he rehearsed for 50 sold-out comeback concerts at London's O2 arena. Sony Pictures plans to release the film in theaters for a limited two-week engagement, starting on October 28.

Yesterday it was Carrie Bradshaw who stepped back in time for a Sex And The City flashback, and even though this Madonna-inspired outfit is a wee bit over the top, the stiletto loving scribe sure worked it! I mean, of course Sarah Jessica Parker's character is going to have the best 80s clothes and shoes, right?

Oh, and don't even get me started on Charlotte!

If they can't make it work, whatever will the rest of us do?!

A source close to reality TV dad Jon Gosselin told X17online recently, "I don't think the Jon/Hailey thing is happening any more. I'm pretty sure that's over," and now In Touch Weekly reports that Hailey has dumped the Octodad!

After "weeks of lies and cheating," Hailey ended her relationship with Jon, and according to a source for the mag, the final straw came after Jon traveled to Las Vegas without Hailey late last month. "When Jon came back, he said very little to Hailey, but his phone spilled the details," according to a friend close to the 22-year-old homewrecker. "He had several text messages and photos taken with girls, including a showgirl. Hailey was shocked that he didn't bother to delete any of it from his phone." Yikes!

On September 4, the romance of a lifetime ended when Hailey called Jon and told him she was over it it. "She'd had it," the friend says. "She said she couldn't trust him...he lied to her about Kate Major." Hailey believed that Jon was with other women as well, and it sounds like she's jealous of his groupies too! Apparently Hailey was insecure about all "the adoring female fans who line the fence" at Jon's Pennsylvania home on a daily basis. "She doesn't want to deal with that," the friend explained.

Ahh, the downfalls of dating a celebrity!

Katherine Heigl and hubby Josh Kelley are adopting a special needs baby girl from Korea, and in an interview which will air on Friday's Ellen DeGeneres Show, the actress reveals that her daughter will arrive in California very soon, but she still hasn't met the little one!

Katherine told Ellen, "They sent us a picture. They told us that it was a little girl and who she was and the information about six months ago. It was meant to take a long time. This sort of thing can take years.”

“She has special needs. She is a special needs baby and because of that it all moved so much faster," Katherine added. "They wanted to get her to us as quickly as possible." Katherine said she plans to name the baby girl Naleigh, in honor of her mother Nancy and sister Leigh, and the two almost share the same birthday! “She was actually born the day before me in November, which I thought was really serendipitous and just kind of like a sign."

Katherine said she discussed adoption with Josh before the two even got engaged, since it is an issue that hits close to home for her, as her sister Leigh was adopted as well. Katherine says, "It’s been a big part of my life and my family. My sister is Korean and my parents adopted her back in the '70s and so I just always knew that this is something I wanted to do. I made that really clear because not everybody is down with that. Not everybody thinks that. I just wanted to make sure that I was marrying a guy who understands that this was going to have to happen. So about a year ago is when we said, 'Okay! Let’s start the process and the process is intense. It’s just as intense I’m sure to have a baby biologically because you’re going through the whole physical sort of thing of it."

Think Katherine will be a good mama? She better quit smoking!

Even though she kept it super casual for her shopping trip yesterday afternoon, Paris Hilton certainly didn't forget to accessorize! The heiress headed to Kate Somerville in West Hollywood to snag some beauty products, and naturally she matched her sneaks and her tote to her cap. Does this girl ever forget to color coordinate?