The Sing-Off - Season 2 Episode 4
- Genre : Reality
- Année : 2014
- Réalisateur :
- Acteur : Shawn Stockman, Nick Lachey, Patrick Stump, Jewel
- Pays : United States of America
- studio : NBC
- The five remaining groups come together for a performance; each group sings a medley of songs by a single artist; the judges choose the contestants' next assignment.
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