Brinkley writes in her memoir that it started out as a song for a "mystery girl" Joel had been having phone conversations with, but when his relationship with Brinkley began, he finished it in her honor. Their relationship was then immortalized in the hit song's iconic music video, in which Brinkley appears in.

Additionally, she describes discovering that her fourth husband, Peter Cook, was involved in an affair with a teenager, stating, “I was so stunned that I froze.” Christie Brinkley is opening up about her on turbulent marriages with Billy Joel and Peter Cook.