Ah yes, novelty responses to novelty hits. The initiator was "Gordon is a Moron" by Jilted John. You must have been in France at the time, lucky you, listening to "Ca Plane Pour Moi" by Plastic Bertrand - though he was, of course, one of that class of "Belgians that British people assume to have been French" along with such luminaries as Jacques Brel and Herge.