Pop superstar Mariah Carey wore designer David Meister's elegant white jersey evening gown with silver sequin inset of the bodice.Actor Ashton Kutcher co-hosted the event with Combs.

New York, October 31 – That dented silver Rolls you see around town is Sean “P. Combs was in rare form at Mariah Carey’s very, very private Halloween party Sunday night at the brand new club Cain.

“Call me Trojan”, Combs joked upon arriving around 1 a.m., dressed as a Roman soldier.

He went into the club, then back outside a few minutes later, jumped onto the trunk of his car, and from there jumped up to the roof. ” Diddy repeatedly said to the crowd around his car; “You are”, we collectively responded.

But Combs says the real celebration will begin when he's finally able to sleep.

"I wanna be able to lay down," the rap mogul/actor/fashion designer told The Associated Press Wednesday.

"In this one year, I've run a marathon, I did Broadway, signed on for a movie to do Carlito's Way: The Beginning, won men's designer of the year, opened up a store on Fifth Avenue, got the youth vote out - and now it's my birthday," Combs said. I'm gonna lay down for a week, watch TV, eat a turkey sandwich ...

For many celebrities, one of the hottest parties of the year is hosted by Sean Combs, a.k.a. This year's event brought out some serious A-listers in designer garments out to celebrate the Fourth of July.

Chloe Moretz, 15, posted a photo of a delicious turkey fresh out of the oven, while former Jersey Shore star Snooki tweeted a pic of her and her soon-to-be three-month-old son Lorenzo as she enjoyed the holiday atmosphere.

Diddy" Combs plans to celebrate his 35th birthday Thursday with an A-list, ultra-exclusive, all-night party. Diddy's party, dubbed a "Royal Birthday Ball", is billed as "his biggest, most lavish soiree to date".

Among those expected to attend the event at downtown's Cipriani's restaurant were Mariah Carey, Vivica A.

Fox, Spike Lee, Sarah Jessica Parker, Chris Rock and Stevie Wonder.