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Episode 1 - Episode #3.1
Release Date: 19 Sep. 2011The first eight groups perform and two are eliminated. Performers include University of Rochester YellowJackets, the Cat's Pajamas, Afro-Blue, Delilah, Fannin Family, Kinfolk 9, Urban Method, and Vocal Point.
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Episode 2 - Season Premiere: Pt. II
Release Date: 26 Sep. 2011The second of eight groups compete. The groups include Messiah's Men, North Shore, Pentatonix, Sonos, Soul'd Out, The Collective, University of Delaware Deltones, and Dartmouth Aires.
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Episode 3 - Radio Hits and 60's Classics
Release Date: 3 Oct. 2011The six remaining groups from the first bracket of performances sing for the judges' votes.
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Episode 4 - Radio Hits and 60's Classics Part II
Release Date: 10 Oct. 2011The six remaining groups from the second bracket of performances sing for the judges' votes.
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Episode 5 - Top 10 Groups Guilty Pleasures
Release Date: 17 Oct. 2011The top ten groups perform "guilty pleasures" for the judges' votes.
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Episode 6 - Hip Hop Hits
Release Date: 24 Oct. 2011Hip-Hop takes over "The Sing-Off" as the eight remaining groups perform for the judges' votes with an elimination sing-off.
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Episode 7 - Superstar Medleys
Release Date: 31 Oct. 2011A spook-tacular episode of The Sing-Off this Halloween.
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Episode 8 - Little Bit Country/Little Bit Rock & Roll
Release Date: 6 Nov. 2011The remaining challengers must get "a little bit country & a little bit Rock & Roll" performing one song from each genre.
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Episode 9 - The Top 5 Groups: The Rhythm and Blues Revue
Release Date: 14 Nov. 2011The top five groups refine their swagger with a night of R&B hits.
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Episode 10 - America Votes: Group Mastermixes
Release Date: 21 Nov. 2011The top four groups take on the challenge of mashing up two hit songs -- America votes for the champion.
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Episode 11 - Live Finale: Top 3 Finalists
Release Date: 28 Nov. 2011The winner is revealed -- live season finale!
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Episode 12 - A Sing-Off Christmas
Release Date: 5 Dec. 2011"The Sing-Off Holiday Special" will be filled with holiday and inspirational songs performed by the winning groups from all three seasons, a compilation of lead singers from season three, a collegiate ensemble and special guests.