5 Sezona
28 Epizoda
The Sing-Off - Season 4
- Godina: 2014
- Zemlja: United States of America
- Žanr: Reality
- Studio: NBC
- Ključna riječ: competition, music competition, singer, singing, singing competition, acapella, a cappella
- Direktor:
- Uloge: Shawn Stockman, Nick Lachey, Patrick Stump, Jewel