Katy Perry's 2010 blockbuster hit works great for choirs because it has a driving beat and an inspiring message for today's younger generation. "...there's a spark in you. You just gotta ignite the light and let it shine. Just own the night like the Fourth of July. 'Cause, baby, you're a firework. Come on, show 'em what you're worth..." Your students will thank you for letting them sing this terrific song, as featured on the TV series Glee!