Law & Order premiered on NBC in 1990, created by Dick Wolf, with music by composer Mike Post. The opening sting, often written as dun dun, became one of television's most recognisable audio logos, marking scene changes throughout the long-running franchise and its spin-offs including Special Victims Unit. Parodied for decades on sketch shows and later in memes and short videos, it now works as shorthand for interrogations, accusations and courtroom drama even among viewers who have never watched a full episode.