American country a cappella group of five vocalists: Austin Brown, Rob Lundquist, Adam Rupp, Tim Foust, and Adam Chance. Starting as a show group, they toured with approximately 200 shows a year across the United States. The group won the fourth season of The Sing-Off on NBC in 2013. They sang an arrangement of Hunter Hayes' "I Want Crazy" as their final competitive song, earning the group $100,000 and a recording contract with Sony