The Sing-Off
A Sing-Off Christmas (3x12)
Staffelfinale
Ausstrahlung: Dez 05, 2011
Holiday and inspirational songs performed by the winning groups from all three seasons, a compilation of lead singers from season three, a collegiate ensemble and special guests.
- Premiere: Dez 2009
- Episoden: 29
- Anhänger: 162
