SM Entertainment has just released f(x) Sulli‘s first teaser picture for “Red Light” – check it out above! The grainy black-and-white picture is just as grungy in concept as Krystal’s was, so it looks like a darker, more mature concept is in order for f(x) this time around.
Yesterday SM released 13 pictures of Krystal, so moonROK will be on the lookout for more from Sulli tonight – stay tuned for updates!
UPDATE: More teaser photos have been released just now, take a look!
Source: f(x) Official Facebook
Tags: f(x) Red Light Sulli Teaser