Against a backdrop of social unrest and protests The Rolling Stones entered 1969 as a successful blues band that had experimented with psychedelia but were returning to their rock'n'roll roots. By the end of 1969 they had released a stone cold classic, lost one of their founding members, played an era defining concert at Hyde Park to half a million people and seen a fan stabbed to death at their concert in Altamont. This is the story of how 1969 cemented the Stones as the greatest rock & roll band in the world .