Some British hippie who smoked a lot of drugs in the sixties and sang songs reflecting his hallucinations. Oh yes, this all happened while he was in a band called something like the Beatles. Aside from the many conspiracies surrounding his death (which had not happened) he also became a vegetarian, and an activist against seal clubbing. Boo fucking hoo hoo.
Yes, Paul McCartney meat is murder. Tasty, tasty murder.