What is Duke Ellington's famous composition or performance?

Duke Ellington is renowned for his composition "Take the 'A' Train," which became one of his signature pieces and a hallmark of Jazz Music. Written by his longtime collaborator Billy Strayhorn, it captures the vibrant energy of New York City and showcases Ellington's innovative approach to orchestration and arrangement. The piece is celebrated for its lively melody and rhythmic complexity, solidifying Ellington's legacy as a pivotal figure in jazz history.