Lee Joon revealed he started dancing after almost going blind as a child.

On this week's installment of the YouTube series 'ZIP Daesung', Lee Joon opened up about a story from his past. He expressed, "When I was younger, bb guns became popular. I got a bullet in my eye while playing a war game. My eyes turned red with tears of blood, and I saw nothing."

Lee Joon further revealed he couldn't even walk for a month due to eye pressure, saying, "I was lying down with an eye mask, and I couldn't even go to the bathroom." He added, "I was diagnosed with blindness, so I kept listening to the radio. That was when I became a huge fan of H.O.T, Fin.K.L, and Sechskies. After I received treatment, I got up and saw them perform. They were so cool. That's when I started dancing."

'ZIP Daesung' host Daesung replied, "You became a singer because of that bullet. If it didn't get in your eye, would you have listened to the radio so focused?"

Watch the entire 'ZIP Daesung' episode above, and make sure to turn on the English captions.      

SEE ALSO: Lee Joon scheduled to appear on SBS-TV's 'JungleBob' season 2