Judges' Choice The Sing-Off : Season 4 Episode 6
NBC 2h 00m
Aired: December 19th, 2013 @ 8:00 PM EST on NBC
The groups perform songs chose by the judges.
NBC 2h 00m
Aired: December 19th, 2013 @ 8:00 PM EST on NBC
The groups perform songs chose by the judges.
