AGT Season 17 kicks off with The Pack Drumline putting on an explosive drum show; XOMG POP of energetic little girls singing their candy hearts out; magician Mervant telling a story by mixing card tricks with rap; Lee Collinson singing Better Days for a friend he lost; David Lichman trying to entertain with his horse; Joe setting himself on fire and singing for his wife; Jack Grady trying to mix his poem with magic...