Season 13 of America?s Got Talent starts on NBC May 29 at 8 p.m. Tyra Banks continues to host the competition series, and Simon Cowell, Mel B, Heidi Klum and Howie Mandel return as judges. Last summer, America?s Got Talent averaged a 3.5 rating in adults 18-49 and 16 million viewers overall in ?live plus seven day? averages for original Tuesday telecasts, according to Nielsen Media Research. Child ventriloquist Darci Lynne won the competition last season.