When Ozzy Osbourne, Tony Iommi, Geezer Butler and Bill Ward first came together in 1968 they were doing blues rock numbers under the name the Polka Tulk Blues Band, though one day early on Iommi told Osbourne it was terrible. "Every time I hear it, all I can picture is you, with your trousers around your ankles, taking a fucking dump," he said. "It's crap." His big idea was to rebrand themselves as Earth, though they soon discovered they weren't the only English band with that name. Butler eventually saved the day when he saw a crowd of people lined up to see the Boris Karloff film Black Sabbath and convinced his bandmates to try it out.