THIS DAY IN MUSIC………………………………….on January 6th of 1973 Carly Simon’s “You’re So Vain” leads the US hit parade, stirring speculation about exactly who she was singing about. Richard Perry, who produced the album, has his own ideas about the song’s subject matter. He said in the book The Record Producers: “It’s about a compilation of men that Carly had known, but primarily Warren Beatty.” Simon started recording this with Harry Nilsson singing backup, but Mick Jagger ended up singing on it instead (listen for him on the “don’t you” parts), although he was not credited on the album. Simon came up with the “Clouds in my coffee” line on a cross-country flight. She explained the meaning of the phrase, saying: “Clouds In My Coffee are the confusing aspects of life and love. Simon married James Taylor a month before this was released. She has said that it is definitely not about him. The song was also a hit in the UK peaking at #3.