Harmony Sweepstakes A Cappella Festival has been called “the granddaddy of all singing contests” for a cappella groups. It embraces all styles of music performed a cappella, from doo-wop and barbershop, gospel, and jazz to exciting new directions of contemporary vocal harmony. The PNW 2023 champions, Outpour, return as hosts for this high energy event featuring the best vocal talent in the Northwest.