Led Zeppelin

"I still don’t know enough to stop in any respect," singer said of his continuing career.

Breaking down the band's powerhouse masterpiece, track by track.

Tracks eventually would be included on other albums.

Their best studio album is one that was, quite literally, the most lived in.

Robert Plant duets with Sandy Denny on elegiac folk ballad.

A spontaneous shift of gears led the band to create this homage to '50s rock.

Deceptively complex track kicks off band's classic fourth LP.

Guitarist claims Collins "just could not get the beginning of ‘Rock and Roll.’

Drummer also recalls the "awful mess" Kiss made onstage in 1974.

Jimmy Page attends ‘Becoming Led Zeppelin’ premiere as first trailer is revealed.