The Black Sabbath star has revealed Lemmy often goes out of his way to make his friends laugh, and once marked Iommi's birthday by dressing up in drag and full make-up.
He tells Metal Hammer magazine, "We've gone on the road together so often. We've had some fun times. I remember on one occasion, Lemmy came into our dressing room with a birthday cake for me. But it wasn't Lemmy as you'd expect to see him. He had on a black dress, stockings and high heels and was wearing make-up. He looked a right sight. Did I fancy him?! You're joking! It's still Lemmy!"
Iommi adds of the Motorhead frontman, "He is a one-off. We will never see his like again."