"Axel F" is the electronic instrumental theme from the 1984 film Beverly Hills Cop performed by Harold Faltermeyer. It was an international number 1 hit in 1985.
Background
The title comes from the main character's name, Axel Foley (played by Eddie Murphy), in the film. (It also happens to be in the key of F major or D minor.)
Faltermeyer recorded the song using five instruments: a Roland Jupiter-8 provided the distinctive "supersaw" lead sound, a Moog modular synthesizer 15 provided the bass, a Roland JX-3P provided chord stabs, a Yamaha DX7 was used for bell and marimba sounds and a LinnDrum was used for drum programming.
According to Faltermeyer, the initial reaction to his premiere presentation of the cues to the film's producers and director didn't result in an immediate approval; it wasn't until director Martin Brest voiced his approval that the producers showed enthusiasm.
In addition to the Beverly Hills Cop soundtrack, the song also appears on Faltermeyer's 1988 album Harold F. as a bonus track. Reportedly, Faltermeyer was against including it, but MCA insisted as it was his most recognizable track.