It's pretty much the same thing (demo and final version) in all aspects. Lyrics are the same, melodies, production (to an extent). I still prefer Carly's version though. Her voice suits the song so much better and actually gives it the sense of urgency that you get from the production and the lyrics.
I mean, the adlibs (which made her get that writing credit, fatties)that she does in the last 50 seconds alone >>>>
Queen
