Annie Leibovitz photographed Keith Richards during the Rolling Stones' 'Exile on Main Street' tour. This image appeared in our August 3, 1972 issue. "Annie would become part of the tour," said Richards. "It was like, 'There's Charlie [Watts], there's the book and there's Annie. She was invisible to us. That's how she got a lot of good stuff." For more from our Photo Issue, head to RollingStone.com.