On the Market: Billy Joel’s Waterfront Mansion in Florida

“Piano Man” Billy Joel just turned 67 and is still performing every month at his favorite house, New York City’s Madison Square Garden, which is always sold out months in advance. At a million dollars a month, it’s not a bad gig and affords him plenty of time to lay back and enjoy his life at his Tudor mansion on Oyster Bay at the tip of Long Island’s North Shore where he’s involved in boating and has a vintage motorcycle shop where he displays his own collect