B.A.P's charismatic Bang Yong Guk couldn't help himself from flinching on the August 31st episode of SBS' 'Star King.'

The recent episode showed nunchucks champions from all over the world showing off their talents with various tasks.

One champion called Bang Yong Guk to the center of the stage and had him bite on a match. Then, he swung his nunchucks to light the match in his mouth. Bang Yong Guk was pulling out the match when the champion blew it out with another swing. 

The last swing caught Bang Yong Guk by surprise and the idol flinched from fear.

After seeing his response, the MCs teased him by saying, "Thank you for creating a good material" and Bang Yong Guk replied, "When he lit the match, I took it out as an adlib, but I was surprised that he hit it in that time."

Watch a clip of the segment below:

SEE ALSO: BANG&JUNG&YOO&MOON unveil festive ‘Christmas With You’ album highlight medley