Edward Kennedy "Duke" Ellington was an American composer, pianist, and big band leader. A prominent figure in the history of jazz, Ellington's music stretched into various other genres, including blues, gospel, film scores, popular, and classical. His career spanned more than 50 years and included leading his orchestra, composing an inexhaustible songbook, scoring for movies, and world tours. Due to his inventive use of the orchestra, or big band, and thanks to his eloquence and extraordinary charisma, he is generally considered to have elevated the perception of jazz to an art form on a par with other traditional genres of music. His reputation increased after his death, the Pulitzer Prize Board bestowing a special posthumous honor in 1999.

Ellington called his music "American Music" rather than jazz, and liked to describe those who impressed him as "beyond category". These included many of the musicians who were members of his orchestra, some of whom are considered among the best in jazz in their own right, but it was Ellington who melded them into one of the most well-known jazz orchestral units in the history of jazz. He often composed specifically for the style and skills of these individuals, such as "Jeep's Blues" for Johnny Hodges, "Concerto for Cootie" for Cootie Williams, which later became "Do Nothing Till You Hear from Me" with Bob Russell's lyrics, and "The Mooche" for Tricky Sam Nanton and Bubber Miley. He also recorded songs written by his bandsmen, such as Juan Tizol's "Caravan" and "Perdido" which brought the 'Spanish Tinge' to big-band jazz. Several members of the orchestra remained there for several decades. After 1941, he frequently collaborated with composer-arranger-pianist Billy Strayhorn, whom he called his "writing and arranging companion." Ellington recorded for many American record companies, and appeared in several films. Ellington led his band from 1923 until his death in 1974.