We were expecting Jessica Simpson to be rattled by John Mayer's recent comments to Playboy comparing her to "crack cocaine," but after we photographed her out the other night, it seemed like she could care less!

However, sources for Life & Style report that Jessica is a bit annoyed about John running his mouth, and she may share some less than flattering things about him to the press in the weeks to come! A source tells the mag:

“She feels like this came out of nowhere. She had no idea he was going to be talking about her like this. It’s shocking. She thinks he’s lost his mind ... She’s going to be doing a lot of press for her new VH1 series, The Price of Beauty. She knows she’ll be questioned about John again. If someone asks her about it, she will respond. That’s her revenge plan.”

Though Jess seems pissed about John spilling the dirt about their sex life, she might not necessarily disagree with the statement that she was like "sexual napalm"! The source told the mag, “Jessica told me she and John had amazing sex. She said they did things she had never even thought of."

So the question is, what exactly will Jess say about John when the time comes? And what about Jennifer Aniston?

Someone's super stoked to meet up with Sean Penn!

Now I'm 99.999% sure Rob Pattinson doesn't have anything to worry about seeing as Sean is more than twice his age, but the 49-year-old stud does seem to have a thing for young ladies (remember those Lindsay and Natalie Portman rumors?), so we're sure Rob's keeping tabs on his lady love.

Today we caught Kristen Stewart arriving for a meeting at the Montage Beverly Hills, and she just happened to bump into Sean as she stepped out of her green Mini Cooper!

An X17 photographer on the scene tells X17online exclusively:

"Kristen arrived at the hotel and happened to see Sean and he called over to her - he clearly recognized her. He went right up to her and gave her a VERY friendly hug and a big smooch on the cheek, and Kristen's reaction was priceless - we've never seen her look so elated before!"

The two worked together on Into The Wild back in 2007 - Penn directed and Stewart played Tracy, the teenage singer who has a crush on Emile Hirsch's character Christopher McCandless. It was a small cameo, but apparently KStew made an impression!

courtesy Paramount Vantage

So then Kristen went inside the hotel and Sean disappeared, but that smile on her face certainly didn't! Obviously little Miss Twilight still gets starstruck every now and then, so we think this is pretty cute!

Three years ago marked a turning point for the overnight pop sensation...

Britney Spears was America's Sweetheart, the next Madonna, Queen B! What happened to the sweet southern girl from Kentwood, Louisiana?

After splitting with K-Fed in late 2006 and partying with Paris and LiLo, things finally hit rock bottom on February 16th, 2007: The legendary Miss Britney Spears visited a hair salon in Tarzana and SHAVED all her hair off! The horror!

'Twas the razor heard 'round the world! Has there ever been a bigger celebrity breakdown? Never! And X17online was there firsthand to see it...

Britney did bounce back (and we're all the happier because of it), but this was a defining moment in pop culture history. The image of a bald Brit became known as the moment her downward spiral began and would wind up being the greatest scandal of her career!

The Circus singer has sold over 83 million records worldwide, won numerous awards and continues to be a role model for future generations...

That being said, watch the vid below - it is INSANE:

Effortlessly sexy. How does she do it?

90210's AnnaLynne McCord looked lovely in chilly New York City on Monday while attending Jill Stuart's show during fashion week. Loves the coat! And the dress. And that smile. Kudos, girl - an A+!

Hey, she just wants a little attention!

Party of Five starlet - yeah, talk about a flashback! - Jennifer Love Hewitt put on a show for our photogs yesterday afternoon, first by wearing a sexy see-through shirt, and then by filming herself playing with her camera. Random! But J.Love looks as cute as ever and that's all that really counts.

Sidebar, V-Day has passed. When is she gonna tie the knot with Jamie Kennedy?

JWOWW appeared on The Strategy Room today to drop a bombshell bigger than her fake boobs.

Neither she nor Snooki are Italian!

Snooki (aka Nicole Polizzi) is actually Chilean! She was adopted by an Italian family, though, which explains the Italian last name and the preference for "Guidos". JWOWW (aka Jenni Farley) is actually of Irish, Spanish and black widow descent.

JWOWW also revealed that she was not sure if the cast would be heading to Miami Beach (Cancun and Acapulco were also mentioned) but it would definitely be someplace warm and summery, prime conditions for the boys to show off their GTL.

The girls, however, practiced another acronym, Farley revealed. "SSC: sleeping, shopping and clubbing!"

After spending V-Day with Gavin at an English pub, Gwen Stefani took her eldest son out for a solo movie date last night.

Kingston, who didn't seem to want to have his picture taken, also accompanied his mom and a bodyguard to a party store after the flick.

It's no one's birthday or anniversary, but we bet every day is a party at the Stefani-Rossdale's house!

After the report that Lindsay Lohan was banned from certain New York Fashion Week shows because she was deemed a "brand damager" the former Ungaro artistic advisor is hitting back, saying she didn't want to go anyway!

The starlet (who's currently in London) took to Twitter to say: "in response to the wrong Daily News, i'd rather be raising money for those that need it in Haiti @altitude360 then be at fashion week." Then, she tweeted, "ignoring real world issues/reality" and "wake up ny."

In case you haven't heard, Lohan is hosting a post-Brit awards party at Altitude 360 benefiting survivors of the Haiti earthquake. She hardly has time to worry being blacklisted!