In the autumn of 1925, in what turned out to be his last American tour (he died a year later), Houdini would start his act with a large mock wireless set which he opened front, back and top, exposing the internal mechanism to show that there was nothing there before closing it again. A voice would then announce: “Miss Dorothy Young doing the Charleston” — which was her cue to pop one foot out of the radio followed by the other one.