"You're So Vain" is a song written in 1971 by Carly Simon and released in November 1972.
It is one of the songs with which Simon is most identified, and upon its release, reached No. 1 in the United States, Canada, Australia, and New Zealand. The song is ranked at No. 92 on Billboard's Greatest Songs of All Time.
"You're So Vain" was voted No. 216 in RIAA's Songs of the Century, and in August 2014, the UK's Official Charts Company crowned it the ultimate song of the 1970s.
In 2021, the song was ranked 495th on Rolling Stone's 500 Greatest Songs of All Time.
The song is a critical profile of a self-absorbed lover about whom Simon asserts "You're so vain, you probably think this song is about you." The title subject's identity has long been a matter of speculation, with Simon stating that the song refers to three men, only one of whom she has named publicly: actor Warren Beatty.
The distinctive bass guitar intro is played by Klaus Voormann.
The strings were arranged by Simon and orchestrated by Paul Buckmaster, and Simon plays piano on the track.