AC/DC AC/DC AC/DC are an Australian rock band formed in Sydney in 1973 by brothers Malcolm and Angus Young. Their music has been described by music journalists as hard rock, blues rock, and, controversially, heavy metal; the group have defined themselves as "a rock and roll band, nothing more, nothing less". AC/DC underwent several line-up changes before releasing their first album, "High Voltage", in 1975. Membership subsequently stabilised until Cliff Williams replaced Mark Evans as bassist in 1977 for the album "Powerage". In February 1980, a few months after recording the album "Highway to Hell", lead singer and co-songwriter Bon Scott
Boss (Australian band) Marlowe on bass guitar (ex-Heaven) disbanded. In the following year Csongrady, Heckenberg and Pratt founded another hard rock group, BB Steal, in Sydney. In 2003 Csongrady co-wrote "United Forever", the theme song for Adelaide United FC. Boss (Australian band) Boss were a hard rock band, which formed in 1979 in Adelaide. Long term members were Craig Csongrady on lead vocals and Kevin Pratt on lead guitar. The group issued a sole album, "Step on It", in October 1984 before disbanding in 1986. Three members from the final line-up, Csongrady, Pratt and Peter Heckenberg (drums), founded another hard rock group, BB