Nikki Reed, J.R. Martinez & Kristin Cavallari Hit The 'Just Dance 3' LA Launch Party

Celebrating the launch of the new video game, "Just Dance 3," Nikki Reed, J.R. Martinez and Kristin Cavallari share what they like most about the game. Plus, while J.R. Martinez's "Dancing" partner, Karina Smirnoff, is queen of the ballroom, why is he... more