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f(x) is a South Korean girl group formed by SM Entertainment in 2009. The name is a play on the mathematical notation for function, with “f” signifying “flower” and “x” representing the female’s double X chromosome. The quintet consists of Victoria, Amber, Luna, Sulli, and Krystal.

Krystal was first spotted by SM Entertainment in 2000, which earned her a small role in a short segment of Shinhwa’s “Wedding March” music video. Six years later, SM recruited Luna after seeing her performing on a television program. In September 2007, SM discovered Victoria. A month later, Amber was casted from an audition in Los Angeles, California.

While Krystal was the first member to make a media appearance, having appeared briefly in a Lotte commercial in 2002, Sulli was the first member to make a debut, officially debuting as a child actress in September 2005 as the role of young Princess Sun-hwa in the SBS television drama, The Ballad of Seodong. Krystal began training for f(x) in 2006 along with Sulli and Luna. Amber joined them in early 2008.


  • Victoria
  • Amber
  • Luna
  • Sulli
  • Krystal

Other Information

  • Origin : Seoul, South Korea
  • Genres : K-pop, dance-pop
  • Years active : 2009–present
  • Labels : SM Entertainment
  • Associated acts : SM Town


Incoming search terms:

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