The Sing-Off Season 4 Episode 1
Episode Title: The Sing Off Is Back!
Countries:
USA,
Airing Date: December 09, 2013
Runtime:120 mins
IMDb Rating:
Watch The Sing-Off Season 4 Episode 1 full movie online free in HD with English subtitles – no download needed.
"The Sing-Off" will feature a cappella groups performing popular songs from various genres, arranged and sung like you've never heard before. There is no lip-synching, back-up band or safety net. Ultimately America will decide the winning group..