We are thrilled to welcome two of the top names in the a cappella world – headliners and judges Naturally 7 and our special emcee, Deke Sharon. Twelve regional a cappella groups compete for cash prizes and prestige at the 4th annual Sing-Off competition. This year the Sing-Off will be at Summit High School in northwest Bend; the spacious, state-of-the-art auditorium has plenty of room for a cappella fans to cheer on their favorite groups!