Yoon Do Hyun and IU's conversation on Twitter has amused many fans.

On the 16th, singer Yoon Do Hyun tweeted to his followers, "When do you get pissed off? I mean, get angry?"

IU replied, "When I have an important broadcast the next day, so I sleep with a face mask but still get bit on the face by a mosquito on the day of the broadcast?"

Yoon Do Hyun responded, "At first, I thought it wasn't a big deal, but I think that's something you get more mad about the more you think about it."

Fans commented, "Yoon Do Hyun and IU's conversation is so funny", and "I think Yoon Do Hyun and IU are both 4th-dimension thinkers".