Billy Joel 's wild lifestyle and private battles have been laid bare in a new HBO documentary – just as the 75-year-old singer was left reeling by the closure of his beloved Long Island motorbike shop .

The Piano Man star, whose career spans five decades, is the subject of the five-hour film Billy Joel: And So It Goes , and RadarOnline.com can reveal it exposes the truth behind a brilliant but destructive musician. Article continues below advertisement

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He emerges as a man capable of writing enduring hits like Vienna and New York State of Mind , but also of crashing cars, blowing up marriages and alienating friends.

It comes after insiders told us Joel has been "devast

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