From BBC News:
Punk singer Poly Styrene, former singer with the X-Ray Spex, has died at the age of 53 after suffering from cancer.
She was one of the first female punk icons, whose unorthodox yet infectious style was highly influential.
Real name Marianne Elliot-Said, she had cancer of the spine and breast.
A statement on her official Twitter feed said: "We can confirm that the beautiful Poly Styrene, who has been a true fighter, won her battle on Monday evening to go to higher places."
Singer Billy Bragg was among those who paid tribute, saying: "Punk without Poly Styrene and the X-Ray Spex wouldn't have been the same."
Poly Styrene formed her band after watching the Sex Pistols perform on Hastings Pier on her 18th birthday and became known for her unpolished vocals and energetic rallying cries against consumerism and environmental destruction.
X-Ray Spex's signature tune was Oh Bondage Up Yours!, a riotous rejection of social and gender norms that began with Poly Styrene's spoken line: "Some people think little girls should be seen and not heard."
The band released just one album, Germ Free Adolescents, in 1978, before splitting up.