High Quality Content by WIKIPEDIA articles! Johnny Copeland (March 27, 1937 July 3, 1997) was an American blues guitarist and singer. Born in Haynesville, Louisiana, while Copeland was becoming interested in music, he also pursued boxing, mostly as an avocation, and it is from his days as a boxer that he got his nickname "Clyde." Also as a teenager influenced by T-Bone Walker he formed the "Dukes of Rhythm" in Houston, Texas, and made his recording debut in 1956, signing with Duke Records the following year. In his early years he played with such acts as Sonny Boy Williamson, Big Mama Thornton and Freddie King. Although his early records met with little commercial success, he became a popular touring act over the next two decades.