I Wrote a Simple Song is the sixth studio album by American soul musician Billy Preston.

Released in November 1971, it was his first album for A&M Records and marked the start of a run of commercial success in the United States that lasted through to the late 1970s.

The album includes the hit single "Outa-Space", which won the Grammy Award for Best Pop Instrumental Performance of 1972.

Preston included a live version of the instrumental "The Bus", as part of a medley with the Beatles' "Day Tripper", on his 1974 album Live European Tour.

[1] Preston's friend George Harrison played lead guitar on most of the songs,[1] and supplied dobro accompaniment on the title track.