Back Door Man is a Chicago blues composition written by Willie Dixon circa 1960 for Howlin' Wolf, who recorded the original version at Chess Records in Chicago with a band featuring Hubert Sumlin on guitar, Otis Spann on piano, Dixon on bass, and Fred Below on drums. The song draws on longstanding Southern blues slang, where a "back door man" refers to a man conducting a secret affair with a married woman, entering and leaving through the back door to avoid detection. This theme has deep roots in African American cultural expression, connected to earlier blues traditions including references to "sweet back papas" and related imagery in songs by artists such as Lightnin' Hopkins. Musically, the original recording is notable for its raw, modal arrangement built around a single chord, driven by an insistent guitar riff that creates a hypnotic, prowling feel. This one-chord framework distinguishes it from typical blues progressions, relying on repetition and rhythmic intensity rather than harmonic resolution. The loose, shambling beat prioritizes groove and menace over precision, with instruments playing against each other in angular, unexpected rhythmic patterns. The composition became an influential piece in the blues-rock crossover, with covers by John Hammond Jr. in 1964 and most famously by The Doors on their 1967 debut album, where it was adapted into a more structured arrangement. Dixon himself later recorded his own version featuring Stephen Stills on guitar.
