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Featuring the country's best a cappella groups performing popular songs like you've never heard them before. There's no lip-synching, backup bands or safety net. They'll be singing for America's vote, with the winner walking away with the ultimate prize - a Sony Music recording contract and $100,000.
First Air Date : Dec 14, 2009
Last Air date : Dec 17, 2014
Episode : 28 Episode
Season : 5 Season
Runtime: 120:85 minutes
Studio: NBC
Country: United States of America
Crew:
