Season 3
The third season of The Sing-Off premiered on September 19, 2011. The number of a cappella groups was increased from 10 to 16, resulting in a new format. The show created two brackets, with only half the groups performing each week for the first few weeks. Nick Lachey stayed as host for the new season, as did Ben Folds and Shawn Stockman as judges. New to the judges' table was Sara Bareilles, who replaces Nicole Scherzinger, who left after 2 seasons to become a judge on The X Factor. The program ran for 11 episodes, and was concluded on November 28, 2011 with Pentatonix winning the title.
Episodes
1 Season Premiere: Part 1 Sep 19, 2011 2 Season Premiere: Part 2 Sep 26, 2011 3 Radio Hits & 60's Classics: Part I Oct 3, 2011 4 Radio Hits & 60's Classics: Part 2 Oct 10, 2011 5 Top 10 Groups: Guilty Pleasure Music Oct 17, 2011 6 Top 8 Groups: Hip-Hop Hits Oct 24, 2011 7 Top 7 Groups: Superstar Medleys Oct 31, 2011 8 Top 6 Groups: Rocking Out & Goin' Country Nov 7, 2011 9 Top 5 Groups: The Rhythm & Blues Revue Nov 14, 2011 10 America Votes: Group Mastermixes Nov 21, 2011 11 Live Finale: Top 3 Finalists Nov 28, 2011