Between 1965 and 1972, political activists around the globe prepared to mount a revolution. While the Vietnam War raged, calls for black power grew louder and liberation movements erupted everywhere from Berkeley, Detroit, and Newark, to Paris, Berlin, Ghana, and Peking. Rock and soul music fueled the revolutionary movement with anthems and iconic imagery. Soon the musicians themselves, from John Lennon and Bob Dylan to James Brown and Fela Kuti,...