Question: Who is the song about you're so vain?
Disambiguated questions and answers: question: Who is the song about you're so vain according to Carly Simon?
Who is the song about you're so vain according to the press?
Who is the song about you're so vain according to Warren Beatty?
Who is the song about you're so vain according to Sheila Weller?
answer: three men
Warren Beatty
David Cassidy
Cat Steven
David Bowie
Warren Beatty
Dan Armstrong
Natural Questions answer: actor Warren Beatty (from the Wikipedia article "You're So Vain")