On the most recent episode of 'Happy Together', 2AM member Jo Kwon revealed the origins behind his childhood nickname, 'Harry Potter'. He stated on the show that he had scars from nails digging into his forehead three separate times during his childhood. Apparently, he was visiting a video store with his mom when he slammed his head into an exposed nail while chasing a puppy; another incident occurred when he was attempting to jump from the swings and he bumped his head into a nail sticking out of a gate. Other guests on the show were shocked as Jo Kwon explained, "The first time I ran into a nail, I went to my grandmother's house, and she directly sewed up the wound." Jo Kwon also revealed that the marks on his forehead and circle-framed glasses he wore was the reason why he was called 'Harry Potter' in his youth. Fans and viewers commented, "Jo Kwon is invincible! You seem fine even after having hurt your forehead," "Oh my god, I can't believe your grandma just sewed it up," and "Yeah, Jo Kwon is weird." Source + Photo: Newsen via Nate