The big prize as a photographer was to get a job shooting the Beatles or the Rolling Stones. I got an invitation to shoot the Rolling Stones – and that was ideal for me. They were more edgy for my tastes. Keith is the quintessential rock star. He was quite happy to leave all the responsibilities to Mick and just hang out and have fun. Looking at Keith through the lens said it all. It was immediately clear to me that in its simplicity, this could be an iconic rock image.