Benji Madden

Following her divorce from Jordan Bratman, it's safe to say that Christina Aguilera is the most sought after new bachelorette in Hollywood. And it sounds like she's taking full advantage of that status!

An insider tells Hollywood Life that Aguilera has been carrying on a mostly physical relationship with Benji Madden: "It’s a sex thing. They get along really well," the source claims. "Christina likes the pace it is going and does not want anything to ruin that."

Madden, of course, has dated both Paris Hilton and Holly Madison, so we're just saying... be careful down there, Christina.

People magazine, meanwhile, reports the singer has been "quietly seeing" Matthew D. Rutler for awhile now. He worked as a set assistant on the movie Burlesque. (Watch a clip of Aguilera in that upcoming film HERE!)

You wouldn't have expected them to be an under-the-radar couple, but Benji Madden and Holly Madison are still together.

The pair started dating in December and things have only grown more intense from there.

In fact, reports In Touch Weekly, Madden and Madison will soon be roommates.

“Benji cares very much for Holly. They have been talking about living together,” a source said, adding that Holly will soon leave Las Vegas to reside in Los Angeles with Benji.

Last week, the two were spotted making out at an IT BOYS! music video shoot.

“Benji kept telling her how amazing she looked. They couldn’t keep their eyes off each other,” said a witness.

That might have something to do with Holly's breasts, of course. They take up an entire room.

Last week, Holly Madison admitted that she had a crush on Good Charlotte bassist Benji Madden.

Now, the former Girl Next Door says she and the musician are banging like bandits. Just not in so many words.

Asked about Paris Hilton's ex, Madison told People: "I don't want to talk about him, except that I like him."

That response is about as coy as most of Madison's outfits.

Meanwhile, Madden was spotted this week at the Planet Hollywood Resort in Las Vegas, where Holly resides. While she still won't refer to Benji as her boyfriend, Holly says Madden is her "mysterious adventure buddy" and:

"I think everyone needs an adventure buddy."

We gotta give her credit. That's the most creative term for "f-ck buddy" we've ever heard.

Yup, this seems about right:

Holly Madison and Benji Madden are rumored to be dating. This can't come as a shock to anyone familiar with each celebrity's need for attention and/or questionable taste in the opposite sex. No offense, Hugh Hefner and Paris Hilton.

Okay, some offense.

A witness told Life & Style, the pair of D-listers was seen at a Starbucks together on Sunday.

“It was obvious something was going on between them,” said an onlooker. “Benji stood next to Holly with his arm around her. He was rubbing her lower back and the top of her butt, and she was hanging on his shoulder. They were laughing and flirting the entire time. They couldn’t take their hands off each other!”

Madison isn't shying away from the fact that she has a man. She Tweeted this week:

“You can say I’m hanging out with someone I have a crush on. [Benji] is just someone I have a crush on... for now!"

But, hey, if another wrinkly old man comes along with a TV show, you'll have some competition, Benji!

Sophia Bush, Brody Jenner, AnnaLynne McCord, Solange Knowles, Joel Madden and Cody Linley appear in ads for clothing company Op's "Summer of Music" campaign.

The campaign - which will debut this month - was shot on Westward Beach in Malibu. The stars rocked out to a live Good Charlotte show as they posed for the pics.

"When they asked if I wanted to be involved, I was like, 'definitely!'" said Joel Madden, whose brother Benji also made an appearance in one of the ads.

"Op is a classic California skating and surfing brand. It’s very cool for us. It’s a natural, easy collaboration for Good Charlotte. We don’t get to play a lot of shows on the beach so it’s cool to be here today playing on the beach for Op."

A regular on The Hills and an actress who produces classic One Tree Hill quotes like it's her job were also excited to be part of this new campaign.

"Being from Southern California, I basically grew up wearing Op," Brody Jenner said. "It’s really cool for me to now be part of their new ads."

When the brand relaunched in 2008, Rumer Willis, Jenner's ex-girlfriend Kristin Cavallari, Pete Wentz and Wilmer Valderrama modeled the clothes.

The spring and summer collection of Op is available exclusively at Wal-Mart.

This just in: Katy Perry's ugly is not bumping the ugly of Benji Madden.

Despite being seated next to Paris Hilton's ex-boyfriend at Las Vegas' Lavo nightclub this weekend, and despite reports that said there was "chemistry" between the pair, Perry has taken to her blog in denial of any hook-up.

"Oh kittens! It’s two pseudo famous people sitting next to each other...doesn’t mean we were bumping uglies!” Perry wrote. “You know I don’t just do that with anyone! I was there celebrating a really fun show and a boozy valentines with all my good friends. We were like a group of 25!”

Contrary to reports, Katy Perry is not taking a serving of Paris Hilton's sloppy seconds.

According to reports, Katy Perry kissed Benji Madden... and she liked it!

Following her Valentine's Day show at Hard Rock Hotel's Wasted Space, the cute singer and the ex-boyfriend of Paris Hilton headed to night club Lavo together, where sources told People Magazine the pair cuddled throughout the night, causing one witness to comment on "some chemistry there."

Madden's hands were all over Perry's legs, observers said.

Somewhere, Hilton is crying. And probably waking up next to some random dude.

Well, that didn't take long.

After far-fetched rumors that Audrina Patridge and Benji Madden are dating began surfacing online, The Hills star took to her blog to shoot them down.

Audrina has been pals with Benji - and even dated his best friend Tal Cooperman briefly - for some time, but denies anything romantic ever took place.

In fact, they haven't seen each other in awhile. The same report also linked Paris Hilton and Doug Reinhardt. Here's what Audzo had to say about it:

Here's a lesson in relationships, at least according to the New York Daily News: Dating either Paris Hilton or Benji Madden will make you head for The Hills.

Literally.

Recent exes Paris Hilton and Benji Madden are both moving on with new partners, both of whom appear on the MTV quasi-reality show. Ready for this?

Sources say Benji Madden has upped his friendship with Audrina Patridge to "relationship" status in the last two weeks, though Audzo's rep denies that.

Benji and Audrina have been friends for some time - she was dating his BFF Tal Cooperman for awhile - so there may not be anything to report there.

Paris, meanwhile, is supposedly getting her freak on with Lauren Conrad's and Amanda Bynes' sloppy thirds. Yes, we mean the great Doug Reinhardt.

Man, that guy gets around like... Brody Jenner.

In Touch Weekly is reporting that Good Charlotte rocker Benji Madden, who split from Paris Hilton less than a month ago, is dating Britney Spears.

“They’ve been on a few dates,” a snitch close to Madden revealed. “They met once at The Peninsula Hotel in Beverly Hills for dinner in a hotel suite.”

We highly doubt this is even a little bit true. However, the absurd rumor apparently stems from Britney’s father, Jamie Spears, and her manager, Larry Rudolph, creating a list of potential new boyfriends for the recovering pop star.

The list supposedly included:

• Good Charlotte rocker Benji Maden
• Gossip Girl star Chace Crawford
• Occasionally beaten actor Jesse Metcalfe
• Olympic swimming champion Michael Phelps

A source dished to the celebrity gossip magazine: “Larry made some phone calls and Benji ended up being the most interested in being fixed up.”

Wow, Michael Phelps wasn't interested? You've gotta be kidding. That would have been a great couple. Too bad Caroline Pal really has him whipped.

According to the report, Rudolph would love to use Benji and Britney’s burgeoning new romance to promote her new album, Circus, and world tour.

“He plans to make a big, splashy announcement to help publicize her upcoming tour,” says a source. We'll be sitting here holding our breath.