"Theme from S-Express" is an acid house song by British electronic dance music group S'Express, from their debut studio album, Original Soundtrack (1989), written and produced by Mark Moore and Pascal Gabriel. One of the landmarks of early acid house and late 1980s sampling culture, the single was released by Rhythm King and Capitol, and became an instant hit upon its release in April 1988, peaking at number one on the UK Singles Chart for two weeks. It fared less well in the United States, only reaching number 91 on the Billboard Hot 100 but reaching number one on the Billboard Hot Dance Club Play chart. It additionally peaked at number 11 in Australia and number two in West Germany, France and the Netherlands.

Electronic dance music (EDM) is a broad range of percussive electronic music genres originally made for nightclubs, raves, and festivals. It is generally produced for playback by DJs who create seamless selections of tracks, called a DJ mix, by segueing from one recording to another. EDM producers also perform their music live in a concert or festival setting in what is sometimes called a live PA. Since its inception EDM has expanded to include a wide range of subgenres.