BRINKLEY BASHES BILLY'S BOOZING

Christie left because she didn't like him just the way he was

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Brinkley, who was married to Billy Joel from 1985 to 1994, says, "Booze was his other woman"

SUPERMODEL Christie Brinkley isn’t bottling up her feelings about ex-husband Billy Joel — she’s claiming she gave the hitmaker the heave-ho nearly 35 years ago because of his uncontrollable boozing!

The glamorous cover girl made the admission in her new memoir, Uptown Girl, which shares its title with the 1983 tune that Billy wrote in her honor.

Christie, 71, was married to the now-sober Piano Man, 76, from 1985 to 1994, and the friendly exes share daughter Alexa Ray Joel, 39.