Coup D'Etat was launched by two members of theatre troupe Red Mole (Jan Preston and Neil Hannan), who were soon joined by guitarist Harry Lyon (on a break from Hello Sailor). They are best remembered for Preston's single 'No Music on my Radio' and Lyon's hit 'Doctor I Like Your Medicine' (a NZ Music Awards Single of the Year). After one album they disbanded in 1982. Preston composed soundtracks and reinvented herself as a boogie-woogie pianist; Lyon returned to Hello Sailor; Hannan founded label SDL Music.