Simon Cowell couldn’t be more proud to bestow his America’s Got Talent Golden Buzzer to a courageous and talented musician. During Tuesday’s episode, the longtime judge and executive producer, 59, pushed the coveted button for 11-year-old violinist Tyler Butler-Figueroa from North Carolina, who was diagnosed with Leukemia at 4½ years old and had been bullied by his classmates after losing his hair during chemotherapy.