Mortal Sin were an Australian thrash metal band that formed in 1985 and existed over three distinct periods until 2012. The band released five albums and were the first Australian thrash metal band to tour internationally. According to Australian musicologist, Ian McFarlane, they were one of "two leading lights... [of] a small, but fervent underground thrash/speed metal scene."

Steve Hughes is an Australian-born thrash metal drummer, comedian and actor. Hughes has embraced the title "heavy metal humourist", as it aligns with his approach to comedy, music and life; the press have referred to this title and similar variations.