Along with Black Sabbath, Deep Purple pioneered metal as we know it. Featuring the classic lineup of Ritchie Blackmore, Ian Gillan, Roger Glover, and Ian Paice, 1972's Machine Head is a seminal example of full-on, amps-at-eleven, bang-your-head, blow-your-speakers rock. With heavy-hittin’ anthems like “Smoke On The Water,” "Space Truckin" and “Highway Star,” Machine Head is undoubtedly the band's crowning achievement, not to mention one of the most influential hard rock albums of all time!