AC/DC are a rock band.
AC/DC . Long-term bass player Cliff Williams retired from the band at the end of their 2016 Rock Or Bust world tour . Black Ice is an album by Australian hard rock band AC/DC . Clifford `` Cliff '' Williams ( born 14 December 1949 ) is a British musician who was a member of the Australian hard rock band AC/DC as their bassist and backing vocalist from 1977 to 2016 .