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The Best Seasons of The Sing-Off
Every season of The Sing-Off ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of 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
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