The Sing-Off - Season 4 Episode 2 에피소드 2
The nine remaining groups perform party anthems.
- 유형: Reality
- 사진관: NBC
- 예어: competition, game show, music competition, singer, singing, singing competition, acapella, a cappella
- 캐스트: Shawn Stockman, Nick Lachey, Patrick Stump, Jewel
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