"He was acting delusional in a way I’d never seen before," Brinkley wrote of the incident. "I was so scared that I couldn’t think."Christie Brinkley is opening up the impact that Billy Joel's drinking problem had on their marriage.

Christie Brinkley offers a revealing glimpse into the challenges of being one of the world’s original supermodels in her new memoir, “Uptown Girl.”

In her memoir 'Uptown Girl,' Christie Brinkley writes about the scary incident that led her to divorce Billy Joel.