In the new issue of Rolling Stone, Led Zeppelin’s Robert Plant talks about the behind-the-scenes reality of the band’s 2007 reunion show in London, and why he won’t be playing with his old bandmates again any time soon.

“I’ve gone so far somewhere else that I almost can’t relate to it. It’s a bit of a pain in the pisser to be honest. Who cares? I know people care, but think about it from my angle—soon, I’m going to need help crossing the street.”

He also trash-talks fellow aging rockers who are still playing their old hits:

“There’s  nothing worse than a bunch of jaded old farts, and that’s a fact,” he says. “People who have written their story — they’ve gotten to the point where nothing moves. I don’t deal in that, and I don’t deal with anybody who deals in that.”

Plant says he’d rather turn his attention to projects like his well-received Band of Joy project, and a follow-up to his acclaimed 2007 collaboration with Alison Krauss. Though he said he abandoned their latest project because “the sound wasn’t there,” Plant has still got a whole lotta love for the bluegrass singer. “Alison is the best. She’s one of my favorite people. We’ll come back to [the project].”