<Tr> <Th_colspan="2"> Chronology </Th> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> ◀ </Li> <Li> 2017 </Li> </Ul> </Td> </Tr> <Ul> <Li> ◀ </Li> <Li> 2017 </Li> </Ul> <P> 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 the show 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 . </P>

Who was guest host on america's got talent