Marilyn Manson and Johnny Depp have teamed up to cover Carly Simon's 1972 hit "You're So Vain," HuffPost Entertainment exclusively reports. The controversial singer and eccentric actor have long been friends. Depp invited Manson to be his guest at a "Pirates Of The Caribbean" premiere, and now, it seems, they've sung a duet. Their cover of "You're So Vain" will be included on Manson's upcoming album, Born Villain, due out May 1. (Listen to "No Reflection," the first single off the album, below.) The...