EpisodeS2E4120 min2010-12-15
The Sing-Off
Episode 4
The five remaining groups come together for a performance; each group sings a medley of songs by a single artist; the judges choose the contestants' next assignment.
The Sing-Off
The five remaining groups come together for a performance; each group sings a medley of songs by a single artist; the judges choose the contestants' next assignment.