Norman "Hurricane" Smith, engineer for the Beatles, producer for Pink Floyd and Pretty Things, also had his own, later in life music career. Here's a clip from the Johnny Carson show (classic '70's television!).
One of my favorite warm, wild summer night artists. I've always found it so cool that sound architects can take a lifetime of their surroundings and lay it down on acetate for the rest of us to understand. Best feeling in the world.