Question: What was the real name of Daimaou Kosaka, the man whose single reached 1 on the "Billboard" Japan Hot 100 chart?
Sentence (from "PPAP (Pen-Pineapple-Apple-Pen)"): "PPAP (Pen-Pineapple-Apple-Pen)" (Japanese: ペンパイナッポーアッポーペン , Hepburn: Penpainappōappōpen ) is a single by Pikotaro, a fictional singer-songwriter created and portrayed by Japanese comedian Daimaou Kosaka.
Relevant evidence: No