Ms. Coco is a clown and former history teacher at the Herschel Krustofsky School for the Clowning Arts.
Ms. Coco taught History 101 at the School for the Clowning Arts. She asked the class who the first clown to wear the double-winged neck ruff was. Bart was surprised to find that he both knew the answer and wanted to answer the question. Bart answered that it was Pickelhering from Dortmund, Germany, which was the correct answer. Ms. Coco then asked who the first female clown in the USA was, which Bart again answered, saying it was Amelia Butler from the Royal Amphitheater.