Garth Brooks is celebrating a major milestone with thousands of fans. He’s the first musician to earn seven Diamond Album Certifications from the Recording Industry Association of America. The CMA “Entertainer of the Year” nominee marked the unrivaled achievement at Ascend Amphitheater in Nashville. Governor Bill Haslam was there to present him with a custom belt buckle complete with seven diamonds. Jason Aldean, Kelly Clarkson, Reba McEntire and several others also came to show their support.