The number of a cappella groups was increased from eight to ten, with all acts coming from the United States.
Nick Lachey remained as host and the three judges, Ben Folds, Shawn Stockman and Nicole Scherzinger, also returned.
Deke Sharon returned as music director and vocal producer.
The music staff included Ed Boyer, Ben Bram, and Bill Hare.
On the finale, the group Committed became the second champion of the show, beating Street Corner Symphony, The Backbeats and Jerry Lawson & Talk of the Town.