2AM's Jo Kwon shocked viewers by revealing that he once fainted after a hidden camera prank by Seulong.

On the March 13th broadcast of KBS 2TV's 'Vitamin', the topic of emergency rooms came up, and Jo Kwon shared, "I went to the emergency room exactly once when I fainted."

"On a program, Seulong and Kim Na Young pretended to be dating to fool me for a hidden camera segment. If the news that they were dating wasn't enough, they also told me that they were going to get married, so I was really shocked. Maybe it was because of that shock, I went to the bathroom after the recording and suddenly fainted."

"My manager hyung found me and sent me to the emergency room. After the examination, they said that my cold in addition to the big shock led to me fainting. Now if I think I'm catching a cold, I go to the hospital way before it gets worse and [get a vitamin drip]. I also do weight training three times a week."

Would you faint if you found out Seulong and Kim Na Young were getting married? What about if your favorite idol suddenly married?