Lester Willis Young (August 27, 1909 – March 15, 1959), nicknamed "Prez", was an American jazz tenor saxophonist and clarinetist. He also played trumpet, violin, and drums.
Coming to prominence while a member of Count Basie's orchestra, Young is remembered as one of the finest, most influential players on his instrument, playing with a cool tone and sophisticated harmonies. He became a jazz legend, inventing or popularizing much of the hipster ethos which came to be associated with the music.
Watch a clip of Lester Young playing "Fine and Mellow" with Billie Holliday, free from YouTube.