'You're So Vain' Performed By Taylor Swift & Carly Simon At Gillette Stadium (VIDEO)

07/30/2013 02:05 pm ET

Long before a boy ever broke Taylor Swift's heart, Carly Simon was the one refusing to name the names that inspired her chart-topping hits about former flames who wronged her so.

It shouldn't shock anyone to learn that Swift is a huge fan of Simon, and it makes sense that the legendary singer would join Swift on stage as surprise guest at the Foxborough, Mass. stop on her "Red" tour at Gillette Stadium on Saturday night.

Singing with Simon was a dream come true for Swift, who tweeted about the experience after the show:

taylor swift carly simon

taylor swift carly simon

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