Question: Kazuhito Kosaka, is a Japanese comedian, better known by his stage names Daimaou Kosaka, and which name, used by his fictional singer-songwriter identity, and is best known for his single "PPAP (Pen-Pineapple-Apple-Pen)"?
Sentence (from "Daimaou Kosaka"): Kosaka insists that Pikotaro is another person promoted by him, but they are considered the same person.
Relevant evidence: Yes