Billy Thorpe and the Aztecs were an Australian rock band that gained prominence in the 1960s and 1970s. Fronted by British-born singer-songwriter and guitarist Billy Thorpe, they were known for their energetic performances and blues-oriented sound, particularly notable in their hit single "Most People I Know (Think That I'm Crazy)". The band played a significant role in the evolution of Australian rock music, moving from pop and surf rock to harder, pub rock style. Billy Thorpe's powerful vocal style and the Aztecs' loud, raw sound have made them influential figures in the Australian music scene.