“For sheer impact, immediacy, concision, endurance, influence and intrinsic Zepishness, Led Zeppelin IV is unbeatable. Of all their records, Zep’s fourth album remains their most admired work. From Page’s unimpeachable riffs, through Jones musical invention and Plant’s clarity of vocal to that titanic John Bonham drum sound, IV still emits a freshness that belies its age. Black Dog’s machismo, Rock ‘N’ Roll’s Bonham-propelled brutality, Plant’s honeyed, evocative Sandy Denny complemented vocal on The Battle Of Evermore, Stairway To Heaven’s mainstream-slaying production and dynamism and that’s just side one. After defining metal and folk-rock, IV’s encore was to unwittingly provide hip-hop with When The Levee Breaks, source of its ultimate breakbeat. ” - Classic Rock