Billy Thorpe and the Aztecs were an Australian pop and rock group dating from the mid-sixties. The group enjoyed huge success in the mid-1960s, but split in 1967. They re-emerged in the early seventies to become one of the most popular Australian hard-rock bands of the period. Thorpe died from a heart attack in Sydney on February 28th, 2007. Reformations As is typical of many Australasian groups of the era, The Aztecs went through many incarnations.