The Sing-Off S3 Ep.7 Opener: Halloween Medley

Opening number for Season 3, Episode 7, Medley: “This is Halloween/Werewolves of London/Ghostbusters“ available on “The Sing-Off: Season 3: Episode 7 -- Superstar Medleys“ on iTunes at Watch “The Sing-Off“ Monday nights at 8:00/7:00 Central on NBC. Hosted by Nick Lachey with judges Ben Folds, Sara Bareilles and Shawn Stockman. Air date: October 31, 2011