T-Mobile Sidekick 3 Launch Party

Aaron Carter, AJ McLean of the Backstreet Boys, Haylie Duff, Hilary Duff, Holly Valance, JC Chasez, Jessica Simpson, Paris Hilton, Sophie Monk, and Taryn Manning were on hand for the T-Mobile Sidekick 3 debut party on Wednesday (June 21) at the Palladium in Hollywood, California. Check out pictures from FilmMagic (arrivals1 / arrivals2 / inside), GettyImages (arrivals / inside), Corbis, and WireImage (arrivals1 / arrivals2 / inside).