High Voltage

AC/DC are an Australian rock band, formed in 1973 by brothers Malcolm and Angus Young. Commonly classified as hard rock, they are considered pioneers of heavy metal and are sometimes classified as so, though they themselves have always classified their music as simply "rock and roll". To date they are one of the highest grossing bands of all time. AC/DC underwent several line-up changes before releasing their first album, High Voltage, on 17... February 1975. Membership remained stable until bassist Mark Evans was replaced by Cliff Williams in 1977 for the album Powerage. Within months of recording the 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 Scott's parents urged them to continue and hire a new vocalist. Ex-Geordie singer Brian Johnson was auditioned and selected to replace Scott. Later that year, the band released their highest selling album, and ultimately the third highest-selling album by any artist, Back in Black. The band's next album, For Those About to Rock We Salute You, was their first album to reach number one in the United States.
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Rock music is a genre of popular music that developed during and after the 1960s, particularly in the United Kingdom and the United States. It has... its roots in 1940s and 1950s rock and roll, itself heavily influenced by rhythm and blues and country music. Rock music also drew strongly on a number of other genres such as blues and folk, and incorporated influences from jazz, classical and other musical sources. Musically, rock has centred around the electric guitar, usually as part of a rock group with bass guitar and drums. Typically, rock is song-based music with a 4/4 beat utilizing a verse-chorus form, but the genre has become extremely diverse and common musical characteristics are difficult to define. Like pop music, lyrics often stress romantic love but also address a wide variety of other themes that are frequently social or political in emphasis. The dominance of rock by white, male musicians has been seen as one of the key factors shaping the themes explored in rock music. Rock places a higher degree of emphasis on musicianship, live performance, and an ideology of authenticity than pop music.
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