Season 4 (2013)

The Sing Off Is Back!
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December 9, 2013 • 1h 25m

The groups try to make a good first impression on the judges.

Party Anthems
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December 11, 2013 • 1h 25m

The nine remaining groups perform party anthems.

#1 Hits
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December 12, 2013 • 1h 25m

Eight groups perform their favorite hit.

My Generation
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December 16, 2013 • 1h 25m

The groups perform songs they hope will please all generations.

Movie Night
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December 18, 2013 • 1h 25m

The groups perform songs from movies.

Judges' Choice
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December 19, 2013 • 1h 25m

The groups perform songs chose by the judges.

Finale
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December 23, 2013 • 1h 25m

The three remaining groups compete; one group is declared the winner.