[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), Videos Yoo Jaesuk basically asked them to say the names of all f(x) members as part of a quiz. Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Share on Tumblr (Opens in new window) Tumblr More Share on Pinterest (Opens in new window) Pinterest Share on Pocket (Opens in new window) Pocket Share on WhatsApp (Opens in new window) WhatsApp Like Loading... Related