The Sing-Off
A Sing-Off Christmas (3x12)
Final de temporada
Fecha de emisión: Dic 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.
- Estrenada: Dic 2009
- Episodios: 29
- Seguidores: 162
- Finalizado
- NBC
- Lunes a las 20
