The Sing-Off

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.

• competition
• game show
• music competition
• singer
• singing
• singing competition
• acapella
• a cappella