The Sing-Off - Season 2
1 - Episode 1
Air Date: December 6, 2010
2 - Episode 2
Air Date: December 8, 2010
3 - Episode 3
Air Date: December 13, 2010
4 - Episode 4
Air Date: December 15, 2010
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.
5 - Episode 5
Air Date: December 20, 2010