5 Sezon
28 Episod
The Sing-Off - Season 4 Episode 4 Episodul 4 (2014)
The groups perform songs they hope will please all generations.
- Țară : United States of America
- Gen : Reality
- Studio : NBC
- Director :
- Distribuție : Shawn Stockman, Nick Lachey, Patrick Stump, Jewel
