5 Sezon
28 Episod
The Sing-Off - Season 4 Episode 6 Episodul 6 (2014)
The groups perform songs chose by the judges.
- Țară : United States of America
- Gen : Reality
- Studio : NBC
- Director :
- Distribuție : Shawn Stockman, Nick Lachey, Patrick Stump, Jewel
