Celebrity | Carly Simon Carly Simon: 'You're So Vain' Subject Still a Mystery Singer laughs off reports that enigmatic song is about David Geffen By Marie Morris Posted Feb 28, 2010 3:10 PM CST Copied Carly Simon is photographed in New York on April 24, 2008. (AP Photo/Jim Cooper) Return "subject of 'You're So Vain'" to your "unsolved mysteries" file—Carly Simon says that contrary to widespread reports last week, the song isn't about producer David Geffen. "What a riot! Nothing to do with David Geffen!" the singer-songwriter tells the Hollywood Reporter. "What a funny mistake! Someone got a clue mistaken for another mistake!" Read These Next For first time, SCOTUS is asked to overturn gay marriage ruling. Who was Austin Tice, and where is he now? Ashley Biden posting a lot about 'freedom' amid divorce news. It's a survival story fit for a sea shanty. Report an error