Black Sabbath

Black Sabbath were an English rock band formed in Birmingham in 1968 by guitarist Tony Iommi, drummer Bill Ward, bassist Geezer Butler and vocalist Ozzy Osbourne. They are often cited as pioneers of heavy metal music. The band helped define the genre with releases such as Black Sabbath (1970), Paranoid (1970) and Master of Reality (1971). The band had multiple line-up changes following Osbourne's departure in 1979, with Iommi being the only constant member throughout their history. After previous iterations of the group – the Polka Tulk Blues Band and Earth – the band settled on the name Black Sabbath in 1969. They distinguished themselves through occult themes with horror-inspired lyrics and down-tuned guitars. Signing to Philips Records in November 1969, they released their first single, "Evil Woman", in January 1970, and their debut album, Black Sabbath, was released the following month. Though it received a negative critical response, the album was a commercial success, leading to a follow-up record, Paranoid, later that year. The band's popularity grew, and by 1973's Sabbath Bloody Sabbath, critics were starting to respond favourably. This album, along with its predecessor Vol. 4 (1972) and its successors Sabotage (1975), Technical Ecstasy (1976) and Never Say Die! (1978), saw the band explore more experimental and progressive styles. Osbourne's excessive substance abuse led to his firing in 1979. He was replaced by former Rainbow vocalist Ronnie James Dio. Sabbath recorded three albums with Dio, Heaven and Hell (1980), Mob Rules (1981) and the live album Live Evil (1982), with the last two featuring drummer Vinny Appice replacing Ward. Following Dio and Appice's departures, Butler and Iommi recorded Born Again (1983) with Deep Purple vocalist Ian Gillan and Ward returning on drums, while Electric Light Orchestra drummer Bev Bevan replaced Ward on the subsequent tour. Black Sabbath split in 1984, with Iommi assembling a new version of the band the following year. For the next twelve years, the band endured many personnel changes that included vocalists Glenn Hughes, Ray Gillen and Tony Martin, as well as several drummers and bassists. Martin, who replaced Gillen in 1987, was the second-longest serving vocalist after Osbourne and recorded three albums with Black Sabbath before his dismissal in 1991. That same year, Iommi rejoined with Butler, Dio and Appice to record Dehumanizer (1992).