Bill and Boyd were a pop music duo from 1959 to 1989 consisting of William "Bill" Cate and William "Boyd" Robertson, both on lead vocals and lead guitar, which started recording in 1960. They began their careers in Wellington, New Zealand before relocating to Sydney by 1964. In 1968 they toured United States supporting The Supremes and Herb Alpert.
Bill and Boyd's highest-charting single, "Santa Never Made It into Darwin", peaked at No. 2 on the Australian Kent Music Report Singles Chart in early 1975. It was a charity single in support of rebuilding Darwin after its devastation by Cyclone Tracy on the previous Christmas Eve - Christmas Day. At the Country Music Awards of Australia of 1976 "Santa Never Made It into Darwin" won the APRA Song of the Year for the duo and Cate its writer. Their self-titled album from 1975 reached No. 1 on the New Zealand Albums Chart, while "Put Another Log on the Fire" reached No. 5 on the related New Zealand Singles Chart and No. 23 in Australia. The duo continued together until 1989. Cate formed a self-titled trio.