I know I'm a little late to respond but, Actually in some ways they do considering the fact that some have professional artist singing them like: Batista's I Walk alone, Randy Orton's theme songs by Rev Theory, Motorhad with HHH themes etc... Plus one other poster on here uploaded a theme song once used by WWE that was written by professional music artist.
As for the actual song I listening to now is:
I thank Cruel Intentions II for bringing me into this masterpiece.