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After introducing himself, Jung Hyung Don started to mention that they had a certain fate, which confused his guest.  He clarified, "Your mother, did she not tell you?" This jogged Junhyung's memory and he said, "Oh, that you guys ran into each other on the elevators not too long ago?"

Jung Hyung Don said, "We're on the same floor," surprising Junhyung with the news that his mother and Jung Hyung Don lived not only in the same building but also on the same floor.  Junhyung confirmed this was true by signing the number for the floor discreetly with his fingers.

Jung Hyung Don confirmed and went on to say how Junhyung's elegant mother came on the elevator and introduced herself very politely after they both pressed the elevator button to the same floor.  It was also revealed that Junhyung's mother was good friends with the mother of Big Bang's Seungri!

You can watch the funny clip above at 4:13.