Quoc: Season twelve of the reality competition series America's Got Talent was ordered on August 2, 2016 and premiered on NBC on Tuesday, May 30, 2017. Howie Mandel, Mel B, Heidi Klum and Simon Cowell returned as judges for their respective eighth, fifth, fifth and second seasons. Supermodel and businesswoman Tyra Banks replaced Nick Cannon, who hosted for eight seasons, making her the first female host of the show. The live shows returned to the Dolby Theatre in Los Angeles beginning August 15, 2017.

Answer this question based on the passage: who is the host on americas got talent?
HW Chung: OK, some thoughts:
The important part for answering this question is: Supermodel and businesswoman Tyra Banks replaced Nick Cannon, who hosted for eight seasons, making her the first female host of the show. The answer is Tyra Banks.