James Fletcher Hamilton Henderson, Jr. was an American pianist, bandleader, arranger and composer, important in the development of big band jazz and swing music. His was one of the most prolific black orchestras and his influence was vast. He was often known as Smack Henderson. Fletcher is ranked along with Duke Ellington as one of the most influential arrangers and band leaders in jazz history, and helped bridge the gap between the jazz and swing era.
Read more: Wikipedia