Brinkley writes in her memoir that it started out as a song for a "mystery girl" Joel had been having phone conversations ...

I was 100% dedicated to Billy, but I never told anyone about our issues, not even my friends,” the model said in a new interview.

In memoir "Uptown Girl," Christie Brinkley gets real about her relationship with Billy Joel, Peter Cook divorce, helicopter crash and modeling career.

The uptown girl herself is still living in her uptown world. Billy Joel's ex-wife Christie Brinkley danced along as he ...