This is my favorite Katy Perry song of all time.  Ignite the light and let it shine, just own the night, like the fourth of july!  Baby you're a firework!  Come on show 'em what your worth!  Make 'em go on, on, on as you shoot across the sky, y, y!  Boom, boom, boom, even brighter than the moon, moon, moon.

[video discovery via drew]