Carly Simon Spills a Big 'You're So Vain' Secret

She finally named one of her inspirations.

Now, she's revealing who she's referring to -- at least in one part.

"I have confirmed that the second verse is Warren [Beatty]," Simon told People magazine. "Warren thinks the whole thing is about him!"

The other lyrics in the song, she said, refer to two other men, though she doesn't plan to reveal their identities anytime soon.

"At least [not] until they know it's about them," she said.

"I never thought I would admit that it was more than one person!" she added. "Why do [people] want to know? ... It's so crazy!"