Machine Head have made a career out of stubbornly refusing to repeat themselves. The result is a catalog that rifles its way through the heavy metal playbook. The Bay Area act made an instant impact thanks to the battering riffs and thrashy scum of 1994's Burn My Eyes. Arriving at nu-metal's peak, the single “Crashing Around You” showcases violent, percussive grooves and singer Robb Flynn's agile rapping. By the time the group unveiled the epic “Now We Die” in 2014, they had morphed once again, incorporating the prog songwriting and lightning-quick fretwork of classic metal.