Leo High School all-boys choir competing for $1M in 'America's Got Talent' finale TuesdayCHICAGO (WLS) -- The Leo High School all-boys choir is set to take the national stage for the finale of "America's Got Talent" on Tuesday night. So, that's pretty close to being world renowned," said Leo High School President Dan McGrath. "It makes me feel more braver to sing my own music inside the school," said Leo High School student Gabriel Sims. The Leo High School Choir will take the stage on "America's Got Talent" at 8 p.m. Tuesday. Leo High School will have a watch party starting at 7 p.m.