Stars flocked to T-Mobile's massive party in Beverly Hills last night to celebrate the launch of the new Sidekick 4G. Nicky Hilton made the scene with a few girlfriends, while Whitney Port snuggled up to her man, Ben Nemtin. Twilight saga stars Xavier Samuel and Tinsel Korey were both on hand for the festivities, and Glee girl Jenna Ushkowitz struck a pose with John Stamos on the hot-pink carpet. He was one of many cute guys who turned up for the tech-themed soiree. Something Borrowed's Colin Egglesfield, Emile Hirsch, and Jesse Metcalfe were also among the attendees. Inside the bash, guests were treated to cocktails, arcade games, and even a diner serving up sliders and pizza to order. The highlight of the evening came around 11:30 p.m., though, when The Strokes took the stage to perform a surprise show!