DERECK CHISORA has created a song and dance after German promoters banned his ring walk tune for Saturday's world heavyweight title fight with Vitali Klitschko. The Germans were left scratching their heads when Del Boy handed them a tape of the theme tune from TV comedy hit Only Fools and Horses. And after listening to lyrics such as 'Why do only fools and horses work?' the Germans decided enough was enough and Chisora would have to find some other song. Chisora blasted: "No sense of humour, obviously. I could not believe the Klitschkos KO'd my music. I mean, next to the national anthem, it's the most recognisable theme tune in the world! "They didn't know what it was at first but then listened to it and came back saying it was childish and silly — which is an insult to one of the best TV comedy shows of all time. "They want me to come into the ring with some Euro rock trash like Europe's The Final Countdown. "But I can't come out to that — everyone knows me as Del Boy. "I'm beginning to think they're just a load of plonkers, as Del would say. "But I genuinely feel it's the Klitschkos trying to upset my rhythm because they have finally realised what I am capable of." Vitali, the elder of the Klitschko brothers, will be defending his WBC crown at Munich's Olympiahalle on Saturday. Chisora is already in Germany but has moved out of his Munich hotel. The Londoner says he was given a room next to a noisy building site and has been unable to sleep after his morning workouts. He added: "More tricks? Who knows but I won't be hanging around any more waiting to put the lights out in my room. "Instead I'll be putting the lights out on Klitschko."