Comedian Yoon Hyung Bin's crazy eyes scared actor Seo Ji Seok on the Tae Kwon Do special of KBS's "Cool Kiz on the Block."

The preview showed Yoon Hyung Bin displaying his crazy eyes with a roar as well as him landing a leg spike and a roundhouse kick. The viewers are dying to know what happens in the program.

Yoon Hyung Bin was cheered on my A Pink's Bomi, which seemed to give him superpowers. His roar made the stadium ignite with laughter. Yoon Hyung Bin then jokingly pointed toward his belt and said, "This red belt is originally a white belt but it's been stained with blood", provoking Seo Ji Seok.

Seo ji Sukk also warned Yoon Hyung Bin to "watch out" for his K.O.-inducing roundhouse kick. The details of what happens will be shown to the viewers on the April 15th episode of "Cool Kiz on the Block".