First of all, Common Sense needs to know, that's the wrong picture for Firework. Me and my sister were laughing about that (it's a California Gurls picture). I LOVE THIS SONG! I don't know why common sense gave it three stars. No offense AGAIN, common sense doesn't have common sense. Why'd you give it three stars? There's nothing wrong with it. You guys are so picky, you waste your time complaining about inappropriate songs but when there's finally a good one you complain about that too. Anyways, this is a great song. My big sister used to listen to it when she was sad;it's a very uplifting song. As long as you don't let two year old's listen to other songs by Perry, it'll be fine.To wrap this up, this song is packed with self-esteem and I LOVE IT.