And So It Goes,' the singer-songwriter said he felt like "teenager" when he fell for ex wife Christie Brinkley.

The model, who starred in the music video for Joel's "Uptown Girl," said that she tried to save their marriage, adding, "I wanted it to work."

Billy Joel may have been married more than once, but only one ex-wife has her own theme song. In HBO’s new documentary Billy Joel: And So It Goes, the music legend opens up about his marriage to supermodel Christie Brinkley — and the unraveling that followed.