Laguna Beach Stars L.C. & Jason Split

Laguna Beach stars Lauren “L.C.” Conrad and Jason Wahler have split up, PEOPLE has confirmed.

“Its true. Lauren broke up with him last week,” Conrad’s rep, Nicole Perez, tells PEOPLE.

Being single isn’t slowing Conrad down a bit: The 20-year-old, who now appears on The Hills, took a trip to Las Vegas last weekend with her girlfriends, including Hills pal Heidi Montag.

Meanwhile, Wahler, 19, partied in Los Angeles over the weekend at Les Deux with Laguna pal Stephen Colletti. Wahler, wearing Adidas track pants and a t-shirt, got wild on the dance floor, according to a source.

“He was all over the place,” says an onlooker, “Every time I saw him, he was talking to a different girl.”

Wahler’s partying ways contributed to the couple’s breakup, a source tells PEOPLE.

This is not the first time they’ve split. The pair broke up last August, then reunited. “We’re pretty serious now,” Conrad told PEOPLE in May.

As for the future, Conrad plans to return to L.A.’s Fashion Institute of Design & Merchandising in the fall, and will film a second season of The Hills

The Barkers Split

On the heels of Nick and Jessica’s and Dave and Carmen’s split, another MTV reality show couple has called it quits.

According to PEOPLE magazine, blink-182’s Travis Barker has filed for divorce from his “Meet the Barkers” co-star and wife, Shanna Moakler.

The couple were married in 2004 and have two children: son Landon, 2, and daughter Alabama, 7 months. Moakler, a former Miss USA, also has a 7-year-old daughter, Atiana, from her previous relationship with Oscar de la Hoya.

Moakler released a statement saying “My only concern right now is for the welfare and best interests of my children.”

Monday, TMZ reported that Moakler has been added to the latest cast of ABC’s “Dancing with the Stars.”

TMZ

Oh Snap!

Mischa Barton steps out with a mystery guy to London hot spot Umbaba recently, fueling rumors of a breakup with rocker beau Cisco Adler.

Mariah Carey puts herself in a number of good hands during her Adventures of Mimi tour, which kicked off in Miami on Saturday.

Lance Bass stops by ex-bandmate JC Chasez’s 30th birthday party in West Hollywood on Sunday. Bass, who attended with boyfriend Reichen Lemkuh (inset), also caught up with former ‘N Sync-ers Justin Timberlake (who arrived with Cameron Diaz) and Chris Kirkpatrick at the bash.

Jack Black plays human swing to his slumbering 1-month-old son during an outing in Santa Monica on Saturday. The actor gets back to funny business in September, when he begins filming the comedy Be Kind Rewind opposite Kirsten Dunst.

Costars Teri Hatcher and Eva Longoria hold on to a funny moment at the DVD release party for the second season of Desperate Housewives in Universal City, Calif., on Saturday.

Looking post-partum fabulous, Rachael Weisz has an outing with 9-week-old son Henry (with director Darren Aronofsky) in New York City’s SoHo neighborhood on Friday.

Julia Roberts, who is sitting out filming Ocean’s Thirteen this time around, uses her downtime to run errands near Venice Beach on Sunday.

MTV, Nick Cannon collaborate on production deal

 Nick Cannon, who lends his voice to “Monster House,” has signed a deal to develop, produce and appear in projects at MTV.

Under the first-look production deal with the lifestyle programming channel, Cannon said he is developing a sketch comedy and music reality series in addition to his sketch comedy/improv series “Nick Cannon Presents Wild ‘N Out,” which returns for a third season Thursday.

“It’s kind of cool for MTV to trust me with a discretionary fund to go out and buy projects,” Cannon said. “For them to actually see me as someone who can create and put product on the network is really great.”

MTV announced a similar deal with Sean “Diddy” Combs and his Bad Boy Entertainment in March 2005. Like Cannon’s pact, that first-look production agreement called for Combs to serve as executive producer for TV projects.

In addition to his TV deal, Cannon also signed a producing pact with MTV Films through which the Paramount-based label has committed to purchase scripts and pitches with Cannon attached as a producer.

“The film component of the deal gives me an opportunity to write and produce films (as possible starring vehicles),” said Cannon, who has penned several screenplays including “Extra Protection,” which sold to Universal Pictures for six figures last year with  

Will Smith’s Overbrook Entertainment producing.”Now I have a home to get my views out. It gives me a chance to be a part of projects they already have but also bring my own ideas to the table.”

On the TV front, Cannon said he is looking to develop talent-driven content, particularly music- and comedy-themed.

“I know they are looking to do a lot more things with comedy, and I think I can help bring that across,” said Cannon, who executive produced “The Underclassman” for Miramax films as well as “Wild ‘N Out.”

Cannon, who starred in 2002’s box office hit “Drumline,” next appears in the indie crime drama “Weapons” and Emilio Estevez‘ RFK biopic “Bobby.”

Reuters/Billboard

Daniel Baldwin grabs horror role in “Sopranos”

Daniel Baldwin has been hired for a potential recurring role in the final episodes of HBO’s Emmy-winning mob drama “The  Sopranos.”

Baldwin will play the star of the horror movie that aspiring filmmaker Christopher (Michael Imperioli) has been working on.

Described by Christopher as “‘Saw’ meets ‘Godfather 2,”‘ the project centers on “a wiseguy with a big mouth and bigger dreams,” as Christopher introduced it to potential investors in an episode this year.

In the same episode, Christopher’s posse kidnapped screenwriter JT, a recovering addict and degenerate gambler. At a back-seat meeting with Christopher, JT gets an offer he can’t refuse — to write the script based on Christopher’s idea in exchange of the settlement of his gambling debts.

Four episodes later, Christopher went to Los Angeles to meet with Ben Kingsley for the lead. Kingsley passed on the script.

The role now will go to Baldwin.

Filming is under way on the final eight episodes of “Sopranos,” which are slated to air early next year.

“Homicide” alumnus Baldwin’s recent credits include the Showtime film “Our Fathers” and the feature “Searching for Mickey Fish.”

Reuters/Hollywood Reporter