Singer and actor Seo In-guk revealed his unusual habit.
In a recent recording of KBS2TV's 'Hello', Seo In-guk appeared as a guest to hear out the worries and complaints of people.
A woman came out to talk about her father, who has the habit of walking around home without his clothes at home.
During the show, the woman said, "No matter who's in the house, my father walks around wearing only his underwear."
The MCs then asked the guests if they tend to do the same thing when at home. Seo In-guk answered, "Since I live alone, I usually take everything off at home."
Meanwhile, Park Ji-yoon, Maybee, U-Kiss' Soohyun and Kevin, and Seo In-guk appeared as guests for the show.