Today, March 29th (in KST), is Sulli of f(x)'s 17th birthday! To celebrate her birthday, Sulli's fansite Truth is My Light (http://www.sulli94.net/) has published an advertisement for the newspapers published on the 29th. The ad as seen below reveals a photo of Sulli along with the comments:

2010.3.29 f(x)'s happy vitamin Happy 17th Birthday to Sulli. Let's fly higher in the year 2010!

-Truth is My Light, who supports Sulli.

Furthermore, Sulli had a birthday party with her fans in SM Entertainment's headquarters yesterday March 28th, at 9PM. Check out the "I Love You Sulli" video made by her fans to congratulate her. http://www.youtube.com/watch?v=LaTHp4gHleE&feature=player_embedded# From allkpop to Sulli, we want to wish a happy birthday to chu~