Idol group BEAST members revealed their head sizes.

MBC's "All the K-Pop," BEAST members came out as guests and measured their head sizes on the spot, lining up the members according to head size.

Member Yang Yoseob, who is known to have a small head, revealed that his head size is 54.4cm, proving the fact that he has a small head.

Jang Hyunseung was worried that his big hair would add onto his head size, showed 55.2cm, the second smallest head in the group.

In third place were Lee Gikwang and Yoon Doojoon with 56.8cm. Yoon Doojoon was expected to have the biggest head, so he surprised many that he was third place.

The member with the biggest head was now placed between members Son Dongwoon and Yong Junhyung.

Photo Credit: MBC