Written by Stevie Wonder
Date 1976
Source Songs in the Key of Life (album)

"Sir Duke" is a pop song written by Stevie Wonder as a tribute to Duke Ellington. Bob sang it on the 1977 Sesame Street album Bob Sings!.

It was also released as a single, with "Muskrat Love" as the B side. Bernie Hoffer (later to compose the music for Rankin/Bass' Thundercats) arranged both songs. Suzanne Ciani, known for her work on synthesizers, provided "electronic musical effects on the Buchia synthesizer" on "Sir Duke."