Forty years ago, British rock juggernaut Led Zeppelin released their magnum opus, "Led Zeppelin IV." Rife with flourishes of haunting folk, gritty blues and rafter-shaking rock of the heaviest order, "IV" swiftly became the band's defining album, largely thanks to the epic 8 minutes and 2 seconds of the fourth song on the LP, "Stairway to Heaven." Rock music hasn't been the same since.
Arguably classic rock's preeminent ballad, "Stairway to Heaven" is a multi-tiered suite that segues from lilting acoustic delicacy into feral rock 'n' roll abandon and back again.
Read more at the Today Show.
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