The Trademark M.I.B. Main Theme is an instrumental song performed by Danny Elfman. The score is composed using his usual combination of orchestra and electronics. The M.I.B. theme consists of an ostinato, usually played on lower instruments. The most recognizable and true M.I.B. Theme is the Main Theme that plays during the opening credits of the first film, "The Dragonfly Flight sequence". A remixed version is used for the closing credits of the first film, after Will Smith's song "Men in Black " plays, entitled as the M.I.B. Closing Theme. Fragments, portions, and remixes are used for several soundtracks in both films. All known Danny Elfman tracks containing this theme or fragments can be found on this page.