Poly StyreneSadly, the punk world lost one of its great pioneers this week as X-Ray Spex's iconic leader Poly Styrene (aka Marian Joan Elliott-Said) succumbed to breast cancer. She was 53 years old.

The British-born singer was an inimitable voice in the first-generation London punk scene and the defining face of a heroic band that consistently broke from convention. On Tuesday, rumors of her death became increasingly credible, fueled by condolences on her Facebook page, and her UK spokesperson confirmed the news early Tuesday morning.