bi-coastal play station 2 party

the event: The Play Station 2 Celebrity Tournament for Charity, in both New York and L.A., with late-night after-parties on both coasts. The L.A. event doubled as a birthday party for Maverick Records president Guy Oseary, who is being linked in the love department with Demi Moore. They attended a Swept Away screening together just last week.

Britney Spears, on hiatus and having fun, parties in L.A.

the guest list: In L.A.: Oseary, Moore, Jack Nicholson, Leonardo DiCaprio, Tobey Maguire, P. Diddy, Rob Lowe, Marisa Tomei, Benicio Del Toro and many more. In New York: Jamie-Lynn Sigler, Macy Gray, Kirsty Hume, Taye Diggs, Shoshanna Lonstein, Rashida Jones, Oliver Hudson and many more.

Birthday boy Guy Oseary with model Michelle Alves

the setting: It was a friendly battle of East vs. West as stars manned Play Station for a chance to win a $20,000 donation to their favorite charity. Sugar Ray's Mark McGrath eliminated the likes of Luke Wilson and Carson Daly in L.A., having to then square off against New York's champ, Sigler, who beat Gray and David Boreanaz. Sigler's win was to be donated to the National Eating Disorders Association. In New York, De La Soul performed at the after-party, bringing the crowd to a dancing frenzy, which lasted late into the night.

Demi Moore

L.A. champ (and Sugar Ray hunk) Mark McGrath

Rob Lowe and his wife, Sheryl Berkoff

The agony of defeat: Carson Daly