The Sing-Off Season 3 Episode 7 (Top 7 Groups: Superstar Medleys)

Watch The Sing-Off Season 3 Episode 7 (Top 7 Groups: Superstar Medleys) online here: <br /><br />http://tinyurl.com/5u6vchq<br /><br />The seven remaining groups perform a Halloween medley on a stage decorated like a cemetery.