A dance shoe, a method of detecting and signaling a predefined configuration of a dance shoe for example during dancing and the use of a detector and/or a signal means in a dance shoe is described. The dance shoe comprises a detector for detecting a configuration of the dance shoe, and a signal means operably associated with the detector so as to generate a signal upon detection of a predefined configuration by the detector. The predefined configuration is provided by a curvature of an area of the dance shoe.