The Sing-off2009 | TV Show

Cast & Crew  |  Episode Guide

Eight a cappella groups from around the country compete for a recording contract and $100,000.

Premiered: December 14, 2009

Rating: TV-PG

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Season 3, Episode 10 America Votes: Group Mastermixes

First Aired: November 21, 2011

The four remaining groups perform mash-ups of hit songs before viewer voting begins. Also: The episode opens with a collaborative performance of "Baba O'Riley," "Bittersweet Symphony," "Last Friday Night (T.G.I.F.)" and "Hollaback Girl."

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Previous Episode

Top 5 Groups: The Rhythm & Blues Revue

Season 3, Episode 9

November 14, 2011

Next Episode

Live Finale: Top 3 Finalists

Season 3, Episode 11

November 28, 2011