Seasons & Episodes
Pilot
Eight a cappella groups from across America compete to win a recording contract; host Nick Lachey.
Big Hits & Guilty Pleasures
Two groups leave as the competition heats up.
Superstar Medley, Judges' Challenge & Songs Of Hope
The Finale
Finale
Episode 1
Episode 2
Episode 3
Episode 4
The five remaining groups come together for a performance; each group sings a medley of songs by a single artist; the ju
Episode 5
Season Premiere: Part 1
Eight of the 16 competing acapella groups perform as the competition kicks off. Sara Bareilles joins Ben Folds and Shawn
Season Premiere: Part 2
Eight more groups perform together and separately. The groups include Messiah's Men, North Shore, Pentatonix, Sonos, Sou
Radio Hits & 60's Classics: Part I
Theme: Radio Hits (first round), 60's Classics (second round) Group performance: "Somewhere Only We Know" by Keane
Radio Hits & 60's Classics: Part 2
Theme: Radio Hits (first round), 60's Classics (second round) Group performance: "Rhythm of Love" by Plain White T's
Top 10 Groups: Guilty Pleasure Music
Theme: Guilty pleasures Group performance: "All Night Long (All Night)" by Lionel Richie*
Top 8 Groups: Hip-Hop Hits
Group performance: "Nothin' on You" by B.o.B. featuring Bruno Mars
Top 7 Groups: Superstar Medleys
Group performance: Halloween medley of "This Is Halloween" by Danny Elfman, "Werewolves of London" by Warren Zevon and "
Top 6 Groups: Rocking Out & Goin' Country
Theme: Rock classics (first round), Country hits (second round) Group performance: "Wake Up" by Arcade Fire
Top 5 Groups: The Rhythm & Blues Revue
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 Lo
America Votes: Group Mastermixes
Theme: Master Mix (combining 2 songs from different artists) (first round), Judges' Choice (second round) Group perform
Live Finale: Top 3 Finalists
The final three groups perform for the last time before finding out who America voted as the country’s best a capella
The Sing Off Is Back!
The groups try to make a good first impression on the judges.
Party Anthems
The nine remaining groups perform party anthems.
#1 Hits
Eight groups perform their favorite hit.
My Generation
The groups perform songs they hope will please all generations.
Movie Night
The groups perform songs from movies.
Judges' Choice
The groups perform songs chose by the judges.
Finale
The three remaining groups compete; one group is declared the winner.
One Night Only: A Special Holiday Event
A cappella groups Timothy's Gift, Melodres, the Exchange, Traces, San Fran 6 and A.Squared compete for a first-place pri