f(x) Sulli turned into a tiger.

Today, Sulli posted on her me2day, "Transformation at the filming site!" along with a picture.

In the revealed picture, Sulli seems to be filming for her SBS drama "To the Beautiful You." She is seen wearing a tiger outfit with her butt sticking out, and is shaking the tail with her hand. She is also pouting, adding onto the cute look.

Internet users who saw this commented, "Sulli sullovely sulliger," "So cute," and "Must have been hard in the heat."

Photo Credit: Sulli me2day