f(x)

f(x) (; Korean: 에프엑스; RR: Epeuekseu) was a South Korean girl group, consisting of Victoria, Amber, Luna, Krystal, and previously Sulli until her departure from the group in August 2015. Formed by SM, f(x) officially debuted in September 2009 with the release of the digital single "La Cha Ta".

Their debut studio album, Pinocchio (2011), and their two extended plays Nu Abo and Electric Shock produce… More