4 Facts About Black Sabbath’s Original Name and Sound

Black Sabbath started as a blues rock band called Earth in 1968. Bassist Geezer Butler and vocalist Ozzy Osbourne formed the group, later adding guitarist Tony Iommi and drummer Bill Ward.

The name change came after a dark song by Butler. He wrote a track inspired by the 1963 Boris Karloff film “Black Sabbath,” which led the band to adopt that name.

Their early sound was rooted in blues, not heavy metal. Before the name change, Earth played straightforward blues rock, a style far from the darker, heavier music they later pioneered.

The band’s shift to a darker identity was intentional. The new name and horror-inspired lyrics marked a deliberate move away from blues toward the ominous, riff-driven sound that defined heavy metal.