Who did the single that was an internet sensation produced by Avex?
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.
i don't know