1. Grace VanderWaal - A 12-year-old ukulele player gets the golden buzzer when she takes a risk and performs an original tune, "I Don't Know My Name." Check out Grace VanderWaal's amazing audition. 2. Laura Bretan - A young opera singer stuns the crowd and earns Season 11's first Golden Buzzer. See Laura Bretan's amazing audition. 3. Sal Valentinetti - A 20-year-old pizza delivery guy from Long Island charms the crowd--and then really wins them over with his classic take on Frank Sinatra's "My Way." See why Heidi Klum hits the Golden Buzzer for Sal Valentinetti! 4. Calysta Bevier - A 16-year-old cancer survivor stuns the audience with Rachel Platten's "Fight Song"--and earns a Golden Buzzer from Simon Cowell!