Glee, iJustine, DWTS, Willow Smith Whip My Hair, SYTYCD NY auditions

DanceOn brings you the third episode of "Just Dance" with an exclusive look at the New York auditions of "So You Think You Can Dance," Willow Smith's "Whip My Hair," iJustine cutting loose in Apple Stores nationwide, a re-cap of this week's "Glee," and more... Voice Over: Alex Ellis Opener Choreography: Shea Sullivan DJ Tracks: David Berrie