Actor Jo Byung Gyu painfully got his mustache waxed. 

The actor from the hit drama 'SKY Castle' appeared on the May 17 airing of MBC's 'I Live Alone.'

Jo Byung Gyu shared he regularly gets his mustache waxed. This was the 12th wax session, however, the pain did not get any better. Jo Byung Gyu let out cries of pain, and also got teary as he ripped off his facial hair. 

Watch his painful yet funny wax session in the clip below.