They were jealous of their Zeppelins success. It's not just the past. Rolling Stone mag STILL dumps on Led Zep. Look at their 500 greatest LPs of all-time.

Why does Rolling Stone hate Led Zeppelin?

When Led Zeppelin dropped its debut record, Rolling Stone famously panned it and the band (get used to this kind of miss from the magazine) by criticizing everything from the authenticity (calling them a lesser version of the Jeff Beck Group) to Jimmy Page's multiple roles, referring to him as “a very limited producer ...

What did the Stones think of Led Zeppelin?

Mick Jagger described Led Zeppelin shows as a 'thunderous, wonderful racket' During a July 22 chat with The Zoe Ball Breakfast Show, Jagger thought back to meeting Page and fellow session ace John Paul Jones in the '60s.