You're So Vain You Might Be This Trio

[icecream]

Carly Simon has confirmed the 2nd verse of You're So Vain is about Warren Beatty (but not the whole song like he thinks). First and third verses are about two other men who she will not name. This bit from Google speculates on who they could be. Jack Nicholson strikes me as totally arrogant, and I could see one of them being David Cassidy or Mick Jagger. James Taylor does not seem the type at all.

"Who was You're So Vain written about?
Carly Simon's song "You're So Vain" is about multiple men, including actor Warren Beatty:

Warren Beatty
Simon has confirmed that the second verse of the song is about Beatty. She had a fling with Beatty, knowing his reputation as a playboy. Simon has said that Beatty thinks the entire song is about him.

Other men
Simon has said that the other two verses of the song are about other men, but she hasn't named them. She hasn't told them the song is about them because she didn't want to shock them.

Other men who have been rumored to be the subject of the song include:
David Geffen, James Taylor, Jack Nicholson, Kris Kristofferson, Mick Jagger, Cat Stevens, Bob Rafelson, Donald Rafelson, David Bowie, and Singer David Cassidy.
Fifty years of Carly Simon's You're So Vain and the mystery ...
Simon wrote "You're So Vain" over the course of a year. It was originally titled "Bless You, Ben". The song reached number one in the United States, Canada, Australia, and New Zealand in early 1973."