Troye Sivan: Singer of dreamy, excellent pop songs cultivated a fan base via YouTube. 7:30 p.m. at House of Blues, 1204 Caroline; 888-402-5837.
Los Guerreros de la Musica: A fusion of Latin sounds. 8 p.m. at Nightingale Room, 308 Main; 832-968-3370.
15:18 Free stuff: Annual Houston Comicon17