Katy Perry – Firework. Boom, boom, boom. Even brighter than the moon, moon, moon. It’s always been inside of you, you, you. And now it’s time to through, ooh, ooh. Cause, baby, you’re a firework. Come on show em what you’re worth. Make ’em go oh, oh, oh. As you shoot across the sky ey ey. You’re a firework. Come on let your colors burst. Complete Full Text, Written Words, Reader, Lyrics, Song, Words And Text By Katy Perry – Firework.