The Sing-Off NBC orders 'The Sing-Off' a cappella group reality competition series 03/19/2009 NBC has announced that it has ordered The Sing-Off, a new Clash of the Choirs-like reality singing competition featuring a capella groups. Read More RELATED NEWS Sara Bareilles to replace Nicole Scherzinger as 'The Sing-Off' judge 'Sing-Off' winners Committed to release debut album on August 30'The Sing-Off' crowns Committed group second-season champion TAGS: The Sing-Off Clash of the Choirs The Sing-Off
