AC/DC is an Australian hard rock band formed in Sydney in 1973 by brothers Malcolm and Angus Young. Although the band members are considered pioneers of heavy metal, they have always classified their music as "Rock n' roll".
AC/DC underwent several line-up changes before releasing their first album, High Voltage, in 1975. Membership remained stable until bassist Mark Evans was replaced by Cliff Williams in 1977. In 1979, the band recorded their highly successful album Highway to Hell. Lead singer and co-songwriter Bon Scott died on 19 February 1980, after a night of heavy alcohol consumption. The group briefly considered disbanding, but soon ex-Geordie singer Brian Johnson was selected as Scott's replacement. Later that year, the band released their best-selling album, Back in Black.
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