The Sing-Off Season 3 Episode 10 -

Airdate: 2011-Nov-21

Episode summary:

The four remaining groups perform mash-ups of hit songs before viewer voting begins. Also: The episode opens with a collaborative performance of

About The Sing-Off series:

The Sing-Off is a group acapella singing competition that is hosted by Nick Lachey. Judges for the competition are Ben Folds, Shawn Stockman, Nicol...Show more >