Parties! The style, stars and scoop from Hollywood's hottest events

Justin Timberlake gave co-star Sharon Stone a warm welcome at the premiere of Alpha Dog, which was held at L.A.'s famed Arclight Cinemas. Ever since the 2006 Sundance Film Festival gave attendees a sneak peek at the movie, there's been plenty of buzz about Timberlake's performance as a member of a suburban gang of drug dealers. JT fans can judge for themselves when the film hits theaters on January 12th.