"Sir Duke" is a song composed and performed by Stevie Wonder, from his 1976 album Songs in the Key of Life. The track topped the U.S. Billboard Hot 100 and Black Singles charts, and reached #2 in the UK Singles Chart, his biggest hit there at the time. It also reached #1 in the United World Chart.
The song was written in tribute to Duke Ellington, the influential jazz legend who'd died in 1974. The lyrics also refer to…
Music is a world within itself
With a language we all understand
With an equal opportunity
For all to sing, dance and clap their hands