For over a quarter century the Harmony Sweepstakes has been delighting audiences by presenting some of the top vocal harmony groups from around the country. The Festival was the inspiration for the hit NBC prime-time show The Sing-Off bringing even more interest to the art of a cappella singing. From vocal jazz to doo wop, barbershop to pop and all styles in between you will be amazed at the versatility of the human voice on display in this most exhilarating evening of vocal harmony singing.