VIDEO – Taylor Swift duets with Carly Simon on “You’re So Vain”

It shouldn’t be any surprise that Carly Simon is a huge inspiration for Taylor Swift, especially her “You’re So Vain” song. Practically every song Taylor Swift sing/writes is an homage to that iconic “F-You” tune, and Taylor is very open about her affection for it. A few weeks ago she tweeted “I feel like I definitely get along with people roughly 45% more if they know all the words to ‘You’re So Vain’ by Carly Simon.”

23-year-old Taylor got to have an ultimate geek-out fangirl moment when 68-year-old Carly accepted her offer to perform the 1972 hit live onstage at Boston’s Gillette Stadium July 27.

The major difference between “You’re so Vain” and Taylor’s songs is that usually it’s pretty clear who Taylor’s talking about because she drops some pretty obvious hints. It’s part of her brand; she enjoys the game. But Carly left curious fans guessing for decades, leaving them to speculate about past boyfriends like Warren Beatty or Mick Jagger, but in 2010 she revealed it was actually written about her gay record label boss David Geffen. She told Uncut Magazine that she whispered his name during a new acoustic recording of the song. “You know what, I’m just going to tell you this. The answer is on the new version of ‘You’re So Vain,’ on my new record Never Been Gone,” she said. “There’s a little whisper and it’s the answer to the puzzle.”

Below is a video of Taylor and Carly pre-gaming. “Once we get out there and we have 55,000 in a sing-along, it’s just going to be like karaoke night in the stadium,” Swift said giddily. “Every girl out there will be thinking of someone when we’re singing.”