While Zeppelin fans typically gasp at such a declaration, Plant himself can relate.
In a recent interview with The Guardian, Plant revealed that he fell out of the love with some of his early Zeppelin performances around 1970, when the band was recording its third album.
III is one of Zeppelin's most acoustic-oriented albums. While working on it, Plant says he "realized that tough, manly approach to singing I’d begun on [the 1966 track with the band Listen] 'You Better Run' wasn’t really what it was all about at all.
"Songs like [Zeppelin's] 'Babe I’m Going to Leave You' ... I find my vocals on there horrific now. I really should have shut the f--- up!”
Elsewhere in the interview Plant discusses his love for late-'70s punk rock and his drive to continue to make original albums and experiment with new sounds.
Plant's new solo album, Carry Fire, is available now. Get more information here.
Photo: Getty Images