In the 1970s, rock bands didn’t come any bigger or more influential than Black Sabbath and Led Zeppelin. But any rivalry between the two groups was outweighed by their long-standing friendship – one that peaked with one of history’s greatest lost jam sessions.
“We knew Robert Plant and John Bonham from back in Birmingham,” Sabbath singer Ozzy Osbourne told Classic Rock in 2016. “We had checked Robert out with his early bands, and he’d told us he was joining The Yardbirds. Then one day we were in this club in London called Blazes, and the DJ started playing this song. So I go up and say, ‘What’s the name of the band that’s playing? That’s fucking Robert Plant singing, he’s a big shot in Birmingham.’ And she goes, ‘It’s The Yardbirds, but they’ve just changed their name to Led Zeppelin.’ I was, like, ‘Fuck me!’”
