[VIDEO] 130810 f(x) = Mentioned in Infinity Challenge Cut On August 10, 2013 By hearteumiIn f(Amber), f(Krystal), f(Luna), f(Sulli), f(Victoria), VideosLeave a comment Yoo Jaesuk basically asked them to say the names of all f(x) members as part of a quiz.
f(♥) 