If David Geffen ever thought "You're So Vain" was about him, he'd have been wrong.
From Friedman's blog:
She emailed me last night: “What a riot! Nothing to do with David Geffen! What a funny mistake! Someone got a clue mistaken for another mistake!”
For years, Simon has leaked obscure clues that have caused people to speculate that the subject was anyone from Geffen to Warren Beatty to Kris Kristofferson and Mick Jagger.