Sean O'Hagan:
From Johnny Cash "flipping the bird" at Jim Marshall's camera during a soundcheck in San Quentin prison to Robert Mapplethorpe's portrait of an androgynous Patti Smith in white shirt and braces on the cover of Horses, and the late Amy Winehouse posing provocatively in bed on her wedding day, photography has often spoken louder than words when it comes to enshrining a performer in the public eye.
