Christie Brinkley is weighing in on Billy Joel’s “Honesty.” The supermodel, 71, recalled in her new memoir, “Uptown Girls,” how rumors swirled that the singer, 75, was having an affair with another woman towards the end of their marriage — which he allegedly still denies.

In her new memoir, the model recounts her ex-husband’s drunken outbursts, including a chaise longue thrown through patio doors.