Colin Frederick Jacobsen AM (born 13 April 1937), better known by his stage name Col Joye, is an Australian pioneer rock singer-songwriter, musician and entrepreneur with a career spanning some sixty years. Joye was the first Australian rock and roll singer to have a number one record Australia-wide, and experienced a string of chart successes in the early Australian rock and roll scene. He performed with his band the Joy Boys (formerly KJ Quintet).