Plot: The first season of The Sing-Off premiered on December 14, 2009. The show featured eight a cappella groups performing popular songs live
The Sing Off - Season 1
First Episode Aired On:
Monday, December 14 2009
15 years ago
Monday, December 14 2009
15 years ago
Last Episode Aired On:
Monday, December 21 2009
15 years ago
Monday, December 21 2009
15 years ago
Number of Episodes: 4