Simon scored the biggest success of her career in 1972–73, with "You're So Vain".
It hit No.
1 on the U.S. Pop and Adult Contemporary charts, and sold over a million copies in the United States alone.
It was one of the decade's biggest hits and propelled Simon's breakthrough album No Secrets to No.
1 on the U.S. album charts, where it stayed for five consecutive weeks.
The album achieved Gold status that year, and by its 25th anniversary in 1997 it had been certified Platinum. "
You're So Vain" received Grammy Award nominations for Record of the Year, Song of the Year, and Best Pop Vocal Performance, Female.
Additionally, in 2008, it was listed at No.
72 on the Billboard Hot 100's list of the top 100 songs from the chart's first 50 years, August 1958 through July 2008.
On August 23, 2014, the UK Official Charts Company gave it the accolade of 'ultimate song of the 1970s'.

The subject of the "You're So Vain" song itself became one of the biggest mysteries in popular music, with the famous lyric "You're so vain/I bet you think this song is about you".
For more than 40 years, Simon has not publicly revealed the name of the subject.
She hinted that it could be a composite of several people, with most press speculation considering Mick Jagger, who sings backup vocals on the recording, and Warren Beatty.
Simon hinted the identity to a variety of talk shows and publications over the years, and, on August 5, 2003, auctioned off the information to the winner of a charity function for US$50,000, with the condition that the winner, television executive Dick Ebersol, not reveal it.
Finally, in November 2015, Simon, promoting her about-to-be-published memoir, said, "I have confirmed that the second verse is Warren" and added that while "Warren thinks the whole thing is about him", he is the subject only of that verse, with the remainder of the song referring to two other, still unnamed men.

The follow-up single, "The Right Thing to Do", was another sizable hit later in 1973, reaching No.
4 on the Adult Contemporary chart and No.
17 on the Pop chart.
That same year, Simon performed on Lee Clayton's album Lee Clayton and co-sang on the song "New York Suite 409" and on Livingston Taylor's album Over the Rainbow and sang with both Livingston and his famous brother, James Taylor (who was, by then, her husband) on the songs "Loving Be My New Horizon" and "Pretty Woman".

In 1974, Simon followed the smash No Secrets album with Hotcakes, which became an instant hit, reaching No.
3 on Billboard's Album Chart and was certified Gold.
Hotcakes included two top ten singles, "Mockingbird", a duet with James Taylor that peaked at No.
5 on Billboard's Pop Singles chart, and "Haven't Got Time for the Pain", which hit No.
2 on Billboard's Adult Contemporary chart.
The same year, Simon provided vocals on Tom Rush's album Ladies Love Outlaws and co-sang with Rush on "No Regrets" and as backup on "Claim on Me".
In 1975, Elektra released her first greatest-hits album, The Best of Carly Simon; this became Simon's all-time best-selling disc, and eventually reached Triple-Platinum status in the United States.

Simon's Playing Possum (1975) and Another Passenger (1976) continued her run of high-profile and generally well-received album releases.
Playing Possum was a Top Ten album, and garnered a successful Top 40 single "Attitude Dancing" and two other charting singles, but its racy album cover, which depicts Simon wearing only a black negligee and knee-high black boots, generated controversy.
In 1991, Rolling Stone ranked it No.
20 on their list of the 100 greatest album covers.
Another Passenger produced only one charting single on the Billboard Pop singles chart, "It Keeps You Runnin'", written by Michael McDonald of the Doobie Brothers, which peaked just outside the Top 40, at No.
46, and the second single, "Half A Chance", only charted on the Adult Contemporary chart.
Despite the lukewarm commercial reception, the album was, and remains, one of Simon's best reviewed works, with Rolling Stone calling it "Carly Simon's best record".
The album became a favorit
Simon scored the biggest success of her career in 1972–73, with "You're So Vain". It hit No. 1 on the U.S. Pop and Adult Contemporary charts, and sold over a million copies in the United States alone. It was one of the decade's biggest hits and propelled Simon's breakthrough album No Secrets to No. 1 on the U.S. album charts, where it stayed for five consecutive weeks. The album achieved Gold status that year, and by its 25th anniversary in 1997 it had been certified Platinum. "You're So Vain" received Grammy Award nominations for Record of the Year, Song of the Year, and Best Pop Vocal Performance, Female. Additionally, in 2008, it was listed at No. 72 on the Billboard Hot 100's list of the top 100 songs from the chart's first 50 years, August 1958 through July 2008. On August 23, 2014, the UK Official Charts Company gave it the accolade of 'ultimate song of the 1970s'.
The subject of the "You're So Vain" song itself became one of the biggest mysteries in popular music, with the famous lyric "You're so vain/I bet you think this song is about you". For more than 40 years, Simon has not publicly revealed the name of the subject. She hinted that it could be a composite of several people, with most press speculation considering Mick Jagger, who sings backup vocals on the recording, and Warren Beatty. Simon hinted the identity to a variety of talk shows and publications over the years, and, on August 5, 2003, auctioned off the information to the winner of a charity function for US$50,000, with the condition that the winner, television executive Dick Ebersol, not reveal it. Finally, in November 2015, Simon, promoting her about-to-be-published memoir, said, "I have confirmed that the second verse is Warren" and added that while "Warren thinks the whole thing is about him", he is the subject only of that verse, with the remainder of the song referring to two other, still unnamed men.
The follow-up single, "The Right Thing to Do", was another sizable hit later in 1973, reaching No. 4 on the Adult Contemporary chart and No. 17 on the Pop chart. That same year, Simon performed on Lee Clayton's album Lee Clayton and co-sang on the song "New York Suite 409" and on Livingston Taylor's album Over the Rainbow and sang with both Livingston and his famous brother, James Taylor (who was, by then, her husband) on the songs "Loving Be My New Horizon" and "Pretty Woman".
In 1974, Simon followed the smash No Secrets album with Hotcakes, which became an instant hit, reaching No. 3 on Billboard's Album Chart and was certified Gold. Hotcakes included two top ten singles, "Mockingbird", a duet with James Taylor that peaked at No. 5 on Billboard's Pop Singles chart, and "Haven't Got Time for the Pain", which hit No. 2 on Billboard's Adult Contemporary chart. The same year, Simon provided vocals on Tom Rush's album Ladies Love Outlaws and co-sang with Rush on "No Regrets" and as backup on "Claim on Me". In 1975, Elektra released her first greatest-hits album, The Best of Carly Simon; this became Simon's all-time best-selling disc, and eventually reached Triple-Platinum status in the United States.
Simon's Playing Possum (1975) and Another Passenger (1976) continued her run of high-profile and generally well-received album releases. Playing Possum was a Top Ten album, and garnered a successful Top 40 single "Attitude Dancing" and two other charting singles, but its racy album cover, which depicts Simon wearing only a black negligee and knee-high black boots, generated controversy. In 1991, Rolling Stone ranked it No. 20 on their list of the 100 greatest album covers. Another Passenger produced only one charting single on the Billboard Pop singles chart, "It Keeps You Runnin'", written by Michael McDonald of the Doobie Brothers, which peaked just outside the Top 40, at No. 46, and the second single, "Half A Chance", only charted on the Adult Contemporary chart. Despite the lukewarm commercial reception, the album was, and remains, one of Simon's best reviewed works, with Rolling Stone calling it "Carly Simon's best record". The album became a favorit
Carly Simon