Other celebrity highlights included Usher demonstrating dance moves he helped craft for "Dance Central3" and "South Park" creators Matt Stone and Trey Parker talking up "South Park: The Stick of Truth, " a video game due to be released in March.
By no means is DanceCentral 3's SmartGlass application a thorough, necessary accompaniment (for a game that already requires Kinect, that's probably a good choice), but it does add some neat side fun for friends waiting in the wings to get their respective grooves on.