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

"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.

Despite their tumultuous 11-year marriage, Billy Joel and Christine Brinkley are on good terms. On April 29, he 71-year-old model and actress opened up about their relationship and marriage in her new memoir Uptown Girl,