He's always ... distorted his singing voice. The motorcycle wreck was 50 years ago and he about broke his neck. He cracked a vertabrae. At least in recordings h

He's always ... distorted his singing voice. The motorcycle wreck was 50 years ago and he about broke his neck. He cracked a vertabrae. At least in recordings his voice was different after that, but it's impossible to say how much was mechanical damage and how much was his Bobness reinventing himself again.