America's Got Talent live shows kicked off with a bang on 9 August, with the season 17 acts bringing their best performances to the stage yet.MORE: Divisive AGT live performance leaves Simon Cowell speechlessThe bar was high for Terry Crews' golden buzzer act Avery Dixon, but after the saxophone player gave it everything he had, the judges and audience were left in awe.VIDEO: Carrie Underwood is unrecognizable in incredible 1990s videoAfter his set that brought the house down, Simon Cowell was left suitably impressed and went on to make a bold prediction for Avery."I want to say something," he started. "I know we say a lot of 'You're going to be a star etc', I promise you, Avery, since we met you, something's changed.MORE: Sofia Vergara teases return to AGT after absence from judge cuts"I'm going to predict something," he added, then taking fans down memory lane by revisiting his first taste of Stateside fame with American Idol."I said this about Carrie Underwood years and years and years ago on another show, which is…you're going to be a superstar.A post shared by America's Got Talent - AGT (@agt)Avery Dixon's performance blew the judges away"I promise you, Avery.