I liked the story behind the concept album 'Ziggy Stardust and the Spiders from Mars'.

Ziggy is the human manifestation of an alien being who is attempting to present humanity with a message of hope in the last five years of its existence. Ziggy Stardust is the definitive rock star: sexually promiscuous, wild in drug intake and with a message, ultimately, of peace and love; but he is destroyed both by his own excesses of drugs and sex, and by the fans he inspired.

Could be made into a pretty fun movie.