What do Grace Jones, Nina Simone and Lee Scratch Perry have to do with punk?

Putin may have more serious critics, but Pussy Riot have shown the west how artistic dissent can still make a difference

Madonna is the latest in a long list of global stars who have come out to support the trio, using a concert in Moscow to condemn their persecution.

Poly Styrene, who has died of cancer at the age of 53, was one of the punk era’s true original talents.