Top 7 Groups: Superstar Medleys The Sing-Off : Season 3 Episode 7
NBC 2h 00m
Aired: October 31st, 2011 @ 8:00 PM EST on NBC
Group performance: Halloween medley of "This Is Halloween" by Danny Elfman, "Werewolves of London" by Warren Zevon and "Ghostbusters" by Ray Parker, Jr.
