William Richard "Billy" Thorpe,AM (29 March 1946 – 28 February 2007) was a renowned English-born Australian pop / rock singer-songwriter and producer, musician. As lead singer of his band Billy Thorpe & the Aztecs, he had success in the 1960s with "Blue Day", "Poison Ivy", "Over the Rainbow", "Sick and Tired", and "Mashed Potato"; and in the 1970s with "Most People I Know Think ... Show More