The Joko Experiment: Dumb / Rangeln: Extrem, Flashmob, Song / Günther Jauch 2.The Joko Experiment: Dumb / Rangeln: Extrem, Flashmob, Song / Günther Jauch 2.The Joko Experiment: Dumb / Rangeln: Extrem, Flashmob, Song / Günther Jauch 2.