Bootlegged Beatles tapes began floating around the Soviet Union in the mid-1960s, but when a group of students gathered on Red Square to celebrate May Day 1967 by dancing the Twist, Khrushchev called the militsiya out to disperse them. Only in the 1970s did the Soviet establishment grudgingly recognise rock and roll as anything more than a ‘cacophony of sounds’. Under Communism, Russian rock bands were forced into two categories: ‘official’ groups, who registered with the Ministry of Culture and were ‘urged to write and perform songs on topics such as space heroes or economic achievement’, and unrecognised ‘amateurs’ who were scorned, scolded and threatened with jail for social parasitism.