f(x) (/ˌɛf ˈɛks/; Korean: 에프엑스, rom. epeuekseu) is a five-member multi-national K-pop girl group formed by S.M. Entertainment in 2009. The group is composed of Chinese leader Victoria, Taiwanese-American member Amber, Korean members Luna and Sulli, and Korean-American member Krystal.

Their music videos are La Cha Ta, Chu~♡, Nu ABO, Danger(Pinocchio), Hot Summer, Electric Shock, Red Light

Their studio albums are