Credit: Kevin Mazur/WireImage

Billy Joel's daughter has been released from the hospital.

Her rep told that Alexa Ray Joel, 23, has left St. Vincent's Hospital in NYC after being admitted on Saturday.

Although Billy Joel, 60, was not at the hospital -- he was at his home in Oyster Bay, Long Island, at the time -- he told Newsday late Saturday night that his daughter was okay.

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"She is going to be fine," he said.

According to reports, Alexa Ray swallowed an unknown amount of pills in a possible suicide attempt.

Alexa is the only child of the famous musician, 60, and his supermodel wife, Christie Brinkley. Brinkley and Joel married in 1984 before divorcing 10 years later.

Alexa, a songwriter, was among several celebrities scheduled to appear in a tree-lighting ceremony at the New York Stock Exchange this Thursday.