Christie Brinkley once thought Billy Joel was her soulmate. But in her new book, Uptown Girl, the 71-year-old model reveals how his battles with alcohol ultimately shattered that dream—and their marriage.

The model “never wanted” to end things with the ‘Uptown Girl’ singer, but in the end had to make the decision to leave.

Christie Brinkley has revealed the reason why her marriage to Billy Joel came to an end, claiming that "booze was the other woman" in their relationship