Although Robert Plant's solo shows with the Sensational Space Shifters always feature a healthy dose of Led Zeppelin favorites -- one tune you'll never hear him tackle is the band's 1971 masterpiece, "Stairway To Heaven." During an appearance on the Ultimate Classic Rock Nights radio show, Plant spoke candidly about his feelings regarding the Led Zeppelin IV classic: "Of course, it was a good song. The construction of the song, the actual musical construction is very, very good. It's one of those moments that really can stand without a vocal -- and, in fact, it will stand again without a vocal, I'm sure, because it's a fine, fine piece of music."

Plant went on to say, "Lyrically, now, I can't relate to it, because it was so long ago. I would have no intention ever to write along those abstract lines anymore. I look at it and I tip my hat to it, and I think there are parts of it that are incredible. The way that Jimmy (Page) took the music through, and the way that the drums reached almost climaxed and then continued. . . It's a very beautiful piece. But lyrically, now, and even vocally, I go, 'I'm not sure about that.'"

Robert Plant recently chatted with Australia's The Project TV show and recalled how Led Zeppelin's massively framed six-foot-five-inch late-manager Peter Grant actually held up cue cards for him: "It's a long song (laughter), okay? And I also know that I have a little bit of trouble remembering lyrics -- this was back in '72, '73. So, our manager, who was quite a formidable personality, he'd come to the front of the stage in the middle of it all and he'd have the lyrics, just going -- like that Bob Dylan thing (during the promo for 'Subterranean Homesick Blues.') Anyway, it was very funny. I can't remember what verse goes where. I know there's something about ‘bustle in the hedgerow' and then all that stuff. . . The conjecture around that song is hysterical."

AUDIO: ROBERT PLANT ON NEEDING CUE CARDS FOR 'STAIRWAY TO HEAVEN'