Plant, Page, Bonham and Jones are in peak form on their monumental fourth, and officially untitled, album. In addition to containing arguably their most famous song "Stairway To Heaven" this chart-topping, 22-times platinum tour de force features monster tracks including "Black Dog," "Rock And Roll" and "When The Levee Breaks." Naturally, it's listed on Rolling Stone's "500 Greatest Albums Of All Time," and is one of the RIAA's handful of top-selling albums ever.

Plant, Page, Bonham and Jones are in peak form on their monumental fourth, and officially untitled, album. In addition to containing arguably their most famous song "Stairway To Heaven" this chart-topping, 22-times platinum tour de force features monster tracks including "Black Dog," "Rock And Roll" and "When The Levee Breaks." Naturally, it's listed on Rolling Stone's "500 Greatest Albums Of All Time," and is one of the RIAA's handful of top-selling albums ever.