E1 - Season Premiere: Part 1

Aired: September 19, 2011

Eight of the 16 competing acapella groups perform as the competition kicks off. Sara Bareilles joins Ben Folds and Shawn Stockman on the judging panel.

E2 - Season Premiere: Part 2

Aired: September 26, 2011

Eight more groups perform together and separately. The groups include Messiah's Men, North Shore, Pentatonix, Sonos, Soul'd Out, The Collective, University of Delaware Deltones, Vocal Point

E3 - Radio Hits & 60's Classics: Part I

Aired: October 03, 2011

Theme: Radio Hits (first round), 60's Classics (second round) Group performance: "Somewhere Only We Know" by Keane

E4 - Radio Hits & 60's Classics: Part 2

Aired: October 10, 2011

Theme: Radio Hits (first round), 60's Classics (second round) Group performance: "Rhythm of Love" by Plain White T's

E5 - Top 10 Groups: Guilty Pleasure Music

Aired: October 17, 2011

Theme: Guilty pleasures Group performance: "All Night Long (All Night)" by Lionel Richie*

E6 - Top 8 Groups: Hip-Hop Hits

Aired: October 24, 2011

Group performance: "Nothin' on You" by B.o.B. featuring Bruno Mars

E7 - Top 7 Groups: Superstar Medleys

Aired: October 31, 2011

Group performance: Halloween medley of "This Is Halloween" by Danny Elfman, "Werewolves of London" by Warren Zevon and "Ghostbusters" by Ray Parker, Jr.

E8 - Top 6 Groups: Rocking Out & Goin' Country

Aired: November 07, 2011

Theme: Rock classics (first round), Country hits (second round) Group performance: "Wake Up" by Arcade Fire

E9 - Top 5 Groups: The Rhythm & Blues Revue

Aired: November 14, 2011

The top five groups open the show with a medley of "I Feel Good" by James Brown, "ABC" by The Jackson 5 and "Crazy in Love" by Beyonce. Later they each perform their favorite R&B hits in an attempt to woo the judges for their votes. The group that remains standing at the end of the season receives the prize of $200,000 cash and a Sony Music recording contract. Nick Lachey hosts and Sara Bareilles, Ben Folds and Shawn Stockman serve as judges.

E10 - America Votes: Group Mastermixes

Aired: November 21, 2011

Theme: Master Mix (combining 2 songs from different artists) (first round), Judges' Choice (second round) Group performance: Master Mix: "Bitter Sweet Symphony" by The Verve, "Hollaback Girl" by Gwen Stefani, "Baba O'Riley" by The Who, and "Last Friday Night (T.G.I.F.)" by Katy Perry

E11 - Live Finale: Top 3 Finalists

Aired: November 28, 2011

The final three groups perform for the last time before finding out who America voted as the country’s best a capella group.