It seems as though singer Kim Jong Kook has also joined the 'Anipang' craze!

A staff member recently uploaded the photo above onto their Twitter page, showing the singer engrossed in playing the popular mobile game inside a waiting room.

'Anipang' is a simple puzzle game provided by Kakao Talk in which players move animal icons to line up three identical characters in either a horizontal or vertical line by swiping the screen.

Upon seeing the photo, netizens responded, "Kim Jong Kook is a 'commander' in whatever he does", "I was wondering what you were doing in the waiting room. Turns out you were playing Anipang", "I bet all the hearts are trembling with fear at the presence of 'Sparta Kook'", and more.

Meanwhile, Kim Jong Kook is currently promoting his new song "Men Are All Like That" off of his 7th full-length album.