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."

Decades after their divorce, Billy Joel is opening up about his marriage to Christie Brinkley. In the second part of his HBO documentary Billy Joel: And So It Goes, out today, the former couple reminisces on falling in—and out—of love.