On the way home from Western MD, I heard "Mr. Crowley" by Ozzy Osbourne. Originally, from just the opener alone, I thought the song was a track from in the movie, "Clockwork Orange." However I was corrected on the song's origin.
Aleister Crowley is an interesting dude who had something to do with the 'Golden Dawn.' I don't know much about him except he is a controversial figure within the new age/pagan spiritual circles and that he created a version of the Tarot known as the Thoth Deck. Crowley also consumed many drugs and kept meticulous records on his drug use. More about Crowley here.
Personally I think the main pic they use of Crowley reveals alot about how he acted and how others may/may not perceive him.