Bare-chested and lit like a live wire, Iggy Pop stands on a darkened stage, both hands raised to his face as he threads the microphone cord through his fingers. His lean torso fills the frame; his head tilts up and away, lost in the moment; and the black space around him swallows everything that isn't skin and light.

There is no styling here, no rock-star polish. The picture has the heat of a body caught mid-performance, sweat-lit and unguarded, more animal than idol. A small logo box in the top corner is the only concession to design, floating over an image that otherwise refuses to sit still.

It is a single live frame, and it does the work of a manifesto. What the photograph actually shows, how it was taken on a London stage while the band was cutting the album, and how it went on to shape the look of punk are all part of what follows.