Pentatonix

Pentatonix is a five-piece a cappella group from Arlington, Texas comprised of Scott Hoying, Kirstie Maldonado, Mitch Grassi, Avi Kaplan and Kevin Olusola. After winning the third season of NBC's The Sing-Off in 2011, the group earned a recording contract with Sony and began to collect a following with its covers of popular songs such as Gotye's "Somebody That I Used to Know," and "We Are Young," by Fun. Pentatonix released its debut EP, PTX Vol. 1, in 2012.