The Sing-Off
Top 7 Groups: Superstar Medleys (3x7)
Uitzenddatum: Okt 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.
- in première gegaan: Dec 2009
- Afleveringen: 29
- Volgers: 162
- Afgelopen
- NBC
- Maandag op 20