Top Korean entertainer Yoo Jae Suk opened a one-day Instagram account.

"Hello. I am opening 'Running Man' SNS for one day. Please help me out a lot. SNS is so hard," posted Yoo on Dec. 21 after opening an Instagram account.

The account was temporarily opened for the popular SBS variety program "Running Man," in which Yoo is a cast member and also serves as MC. The temporary account represented not just Yoo, but the other stars of "Running Man" as well.

Yoo also posted a picture of food and said, "Please help. How many times should I eat?" arousing curiosity among fans over what the account's purpose was.

Yoo had never opened any kind of social media account before, so he received many comments, likes, and followers at an incredibly fast rate.