9yo joined the school musical and actually has a speaking part

My kid who gets nervous talking in front of even like 5 people auditioned for the school musical basically on a whim. Got cast as 'Townsperson #2' with like 2 lines. I fully expected him to back out or be miserable during rehearsals. He's LOVING it. Goes to rehearsal early, knows all the blocking, practicing his lines at home. The show is in 6 weeks and I'm already gonna be that dad crying in the audience over a minor role. This kid surprises me constantly.