NEW YORK (AP)-- A publicist for the singer Alexa Ray Joel, the daughter of pop star Billy Joel and supermodel Christie Brinkley, said she was hospitalized Saturday in Manhattan for an undisclosed condition. The 23-year-old's publicist, Claire Mercuri, said Saturday that Joel is in stable condition and receiving treatment. She declined to say why she had been hospitalized. "We are currently assessing her needs," she said. Joel, who was raised in Sag Harbor, a village on Long Island, attended New York University for a short time before dropping out to focus on her music career, according to