America's Got Talent quarterfinals feature guest judge Kenan Thompson

The third week of live quarterfinals for season 21 of America's Got Talent featured eleven performing acts. During the episode, Kenan Thompson served as a guest judge, filling in for Simon Cowell. Thompson was granted the power of the Golden Buzzer, which allows an act to advance directly to the finals.

Performances included aerialists Holland & Sienna and singer Isaac Atkins. The episode concluded with the anticipation of the live results show, where viewers can vote via TikTok, the official app, and NBC.com to determine which three acts will advance to the semifinals.