"Strict Machine" is an electronic dance song written by British group Goldfrapp and Nick Batt for their second studio album Black Cherry (2003). It was produced by Goldfrapp and describes laboratory rats in neuroscience experiments. Alison Goldfrapp read in a newspaper about experiments in which scientists stimulated rats' brains so that the rats would feel joy when following commands. She was inspired to write "Strict Machine" based on images of the experiment and "more human aspects of machines and sex and control". Actress Gwendoline Christie features on the record sleeve disguised in a rabbit mask.