Justin Bieber
Justin Bieber is also a fan of Pen-Pineapple-Apple-Pen viral video Reuters

Canadian singer and songwriter Justin Bieber revealed he is a fan of Japanese entertainer Kazuhiko Kosaka. The Baby hitmaker's confession comes after the 40-year-old DJ's song, Pen-Pineapple-Apple-Pen or PPAP, which is about a pen with an apple and a pineapple, went viral on the Internet.

Piko Taro, a character created by Kosaka, is seen dancing in the clip, wearing an animal print outfit. The lyrics are: "I have a pen. I have an apple. Apple-pen! I have a pen. I have [a] pineapple. Pineapple-pen! Apple-pen. Pineapple-pen. Pen-Pineapple-Apple-Pen."

Selena Gomez's boyfriend shared the link on his Twitter account. He captioned the post: "My favorite video on the internet"

The video was initially uploaded onto Piko-Taro's official YouTube channel, and it garnered more than 7m views. However, entertainment website 9GAG's Facebook video collected more than 55m views.

Check out full video below: