'The Sing-Off' Season 4 Finale Recap: A Winner is Chosen

It's the season 4 finale! What a whirlwind these past three weeks have been. Tonight on The Sing-Off, the final three groups perform two songs: one on their own and one holiday song with the judges. Reigning champs Pentatonix return to perform and mentor, and a winner is chosen. Plus, Pat Benatar, Neil Giraldo and 98 degrees all perform.  Read More...



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