Girl group f(x)'s member Sulli revealed a self-camera photo in celebration of their new song.

Today, Sulli posted on her Me2day, "Everyone! Go to your TV right now! KBS Music Bank! Watch! Please show us a lot of support for f(x)'s first 'First Wisdom Tooth' stage" along with a picture.

In the picture, Sulli has full makeup and outfit on to go on the stage. Her skinny body and summer-like outfit caught much attention.

Internet users who saw this commented, "I'm really excited," "So skinny, I'm jealous," and "I watched it!"

Photo Credit: Sulli Me2day