5 Сезона
28 Епизода
The Sing-Off - Season 4
- Године: 2014
- Цоунтри: United States of America
- Жанр: Ријалити
- Студио: NBC
- Кључна реч: competition, music competition, singer, singing, singing competition, acapella, a cappella
- Директор:
- Цаст: Shawn Stockman, Nick Lachey, Patrick Stump, Jewel