Casey Donahew Set to Perform at Testicle Festival in Bozeman Alpha Gamma Rho's Testicle Festival will return to the Brick Breeden Fieldhouse on Friday, September 17. In addition to plenty of Rocky Mountain Oysters, this year's Testicle Festival will include performances by Casey Donahew and Randall King. Montana State University's Alpha Gamma Rho Fraternity has been serving up Rocky Mountain Oysters for over 30 years and has brought many live music acts throughout the years. Annually, the Testicle Festival raises thousands of dollars for local organizations like Montana FFA, Montana 4-H, Gallatin Valley YMCA, and Heroes and Horses. If you're unfamiliar with Rocky Mountains Oysters, let us fill you in. Rocky Mountain Oysters are battered and deep-fried cow testicles and a Testicle Festival is an event where people get together and eat them.