Group f(x) becomes human dominoes.

On February 1, Krystal posted a photo on her Me2Day with a title that read "Us Passed Out While Practicing for the Awards Ceremony".

In the photo, the members of f(x) are lying down on the floor in a row. The photos aroused laughter because the girls were holding on to each other's legs and they looked like dominoes.

Netizens commented, "Su Jung, Hurry and get up", "Take time to rest" and etc.