5. Gang of Four, 'Entertainment!' (1979)
Fusing James Brown and early hip-hop with the bullet-point minimalism of the Ramones, Gang of Four were a genuine revolutionary force in their pursuit of working-class justice. The Leeds foursome bound their Marxist critique in tightly wound knots of enraged funk and avenging-disco syncopation, slashed by guitarist Andy Gill's blues-free swordplay.