Billy Joel reveals that he twice attempted suicide — sparked by his affair with a band mate’s wife — in his new HBO documentary And So It Goes , and that one of the attempts left him in a coma.

Before he was “The Piano Man,” a twentysomething Joel played in a Long Island hard rock band called Attila alongside his then-best friend Jon Small. At one point, Joel moved in with Small, his wife Elizabeth Weber, and their young son, during which Joel and Weber spent “a lot of time together” and a “slow build” romance developed. Joel eventually admitted to Small, “I’m in love with your wife.”

“I felt very, very guilty about it. They had a child. I felt like a homewrecker,” Joel said in the documentary, according to People . “I was just in love with a woman, and I got punched in the nose

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