Eight years after Grace VanderWaal won "America's Got Talent," people still see her as the bashful 12-year-old girl from Kansas who floored everyone with her ukulele-playing and contemplative songs.
Grace VanderWaal chats with ET's Denny Directo at the Toronto International Film Festival screening of her movie, 'Megalopolis.' See every winner since 'AGT' kicked off in 2006. ET's Denny Directo ...