Music Videos Red Light Electric Shock 라차타 (LA chA TA) 첫 사랑니 (Rum Pum Pu Chocolate Love (electroni
Artist Biography f(x) (pron.: /ˌɛf ˈɛks/; Korean: 에프엑스) is a South Korean girl group formed by SM Entertainment in 2009. The quintet consists of Victoria, Amber, Luna, Sulli, and Krystal. The name is a play on the mathematical notation for function. The group made their debut on September 5, 2009 with release of the digital single "LA chA TA". f(x) released their first EP Nu ABO in 2010 to growing popularity. f(x) released their first studio album Pinocchio in 2011. The lead single off the album "Pinocchio (Danger)" gained their first music program win and was their first song to win the triple crown.
They released their second Korean EP Electric Shock on June 10, 2012. Electric Shock reached the #1 spot on both the US and Canadian iTunes electronic albums chart soon after its release. The lead single off their EP gained significant popularity and acclaim, domestically sweeping digital charts.