Seo In Guk�confessed that he cleanly shaved the hair from his 'important parts' just to see what it felt like.

He was a guest on the July 12 installment of MBC's 'I Live Alone' and revealed, "There was a scene in 'Reply 1997' where I had to do a backflip in just my underwear. The director told me to shave my body hair, and I did partially, but I became curious. So I decided to shave the hair around my 'important parts'."

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Lee Sung Jae�also revealed, "I got my 'important parts' waxed when I was in 8th grade. I thought I was going to die because it stung so much."