Has one of music's biggest mysteries finally been solved?

The identity of the man who walked into the party like he was walking on to a yacht in Carly Simon's 1972 hit You're So Vain has long been speculated to be Warren Beatty, Mick Jagger, Kris Kristofferson or Cat Stevens. But we've never known for sure.

Now, after guarding the secret for 38 years, the singer is whispering the first name of the man - "David" - about two and a half minutes into a new version of the song, if you listen to it backwards.

Simon, 64, confirmed in an interview with Uncut magazine that the whisper alluded to her former lover. "I'm just going to tell you this," she said. "The answer is on the new version of You're So Vain. There's a little whisper — and it's the answer to the puzzle."

The New York Post notes that David Cassidy and David Bowie have already been guessed - and dismissed. Britain's The Sun today says it's David Geffen, who was the head of Carly's record label back in the day. UPDATE: No matter what you may hear, Showbiz 411's Roger Friedman is still convinced it is Warren Beatty. You can listen to the whisper here.