I actually like the idea of a DJ as a Superhero. He could use his position in the underground night club scene to learn of mobsters, and track illigal activity.
Although I wouldn't have him hit directly by the meteor, that would kill a mortal man. I would have him investigate the crash site and be infected by the meteor (not original, but better).
As far as his clothes, It needs alot of work. No personality.
I am thinking Blade, or Punisher, but scewed towards tha fantastic.
If he is unpenatratible, he doesn't need armor. And if he shoots stars from his hands, doesn't need weapons.
I would make his love intrest an up and coming recording artist, or chick that is in the music industry(promoter, agent, owner of a record lable). She should be better than him in the "real world".
Good luck... and Excelsior! (Stan Lee reference)