Billy Joel is still rock and roll to Elizabeth Weber .

More than four decades after their divorce, the “Uptown Girl” singer’s first wife offered rare insight into their nine-year union, noting that his success came as no surprise to her.

“He’s worked so hard all of his life,” Elizabeth exclusively told E! News at the Tribeca Film Festival premiere of Billy Joel: And So It Goes in New York City June 4. “I’ve never known anybody who worked harder than he did in all those years we were together and working together.”

While the Grammy winner was absent from the red carpet event following his recent diagnosis with the brain disorder normal pressure hydrocephalus , his ex was among those wishing him—as well as wife Alexis Joel —well.

“I just want him to be restored to good health

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