"Mercury Blues" is a song written by K. C. Douglas and Robert Geddins, and first recorded by Douglas in 1948. The song has been covered among others by the Steve Miller Band at The 1967 Monterey International Pop Festival, and 1976 on their album Fly Like an Eagle. Rights to the song were purchased by the Ford Motor Company (who already owned the Mercury marque). Ford, in turn, used it for a television commercial with the word "Mercury" replaced by the words "Ford Truck." Personnel: Steve Miller, guitar, lead vocals; Gary Mallaber, drums; Loonie Turner, bass. (Wikipedia) ..