Die drei ??? is not a musical artist but a long-running German-language audio drama and youth detective franchise, originally adapted from the American The Three Investigators series. Originating in Germany, it began in the late 1970s as a radio and audio cassette series and expanded into books, stage adaptations and other media. The franchise centers on three teenage detectives and is characterized by narrated, plot-driven episodes combining mystery, suspense and occasional elements of humor, often featuring atmospheric sound design and voice acting rather than musical performance. It occupies a prominent place in German popular culture and audio entertainment.