"Speed Demon" is a pop-funk composition written by Michael Jackson, first demoed on May 19, 1986, at his Hayvenhurst home studio and finalized in 1987 at Westlake Recording Studios for inclusion on the Bad album, produced by Quincy Jones on Epic Records. The song originated from a personal incident: Jackson received a speeding ticket that made him late to a recording session, and Jones encouraged him to channel that experience into music. The result is a high-energy, chase-themed track built around a driving, percussive rhythm and an urgent, playful melody that evokes the sensation of highway speed. The composition is hook-driven and groove-oriented, featuring Jackson's characteristic vocal percussion and beatbox-like effects, including repeated exclamations that mimic engine or train sounds. Rather than relying on complex harmonic movement, the piece builds tension through layered vocals, rhythmic intensity, and a compact narrative arc. The arrangement, shaped by a large ensemble of session musicians including synthesizers from Michael Boddicker and Greg Phillinganes, drums from John Robinson and Ollie E. Brown, and horn arrangements by Jerry Hey and Gary Grant, creates a dense, synth-funk texture. Larry Williams contributes an alto saxophone solo on the album recording, bringing a horn voice into the otherwise synth-dominated landscape. The track remains a deep cut from one of the best-selling albums in pop history.
