Group BTOB Yook Sung Jae posted a funny picture of himself.

On July 15, Yook Sung Jae posted on his Instagram, "There is a hole in my beanie."

In the picture, Yoon Sung Jae has his beanie on with his eye showing out of the hole. He is making a funny comical face and Il Hoon in the back is also making a funny face.

In response, people said, "Yook Sung Jae is so good looking, but this is so funny," "This picture is kind of scary too," and "His mouth is so big."

Yook Sung Jae recently took a role for the drama tVN "Nine Boy" as Min Goo, a boy who dreams of becoming a Judo player for a good college.