F(x) Info xD

f(x) (Korean: 에프엑스; pronounced /ˌɛf ˈɛks/) is a five member 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 group made their debut on September 1, 2009 with release of a digital single "La Cha Ta" (stylized as "LA chA TA"). The quintet consists of Victoria, Amber, Luna, Sulli and Krystal.

Pre-debut history

Krystal Jung 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. Sulli Choi first debuted as a child actress in 2005 when she was selected to play young Princess Sun-hwa in the SBS television drama, The Ballad of Seo-dong.[2] In 2006, SM Entertainment recruited Luna after seeing her performing on SBS's television program, "Truth Game".[citation needed] In September 2007, SM Entertainment recruited Victoria Song. A month later, Amber was cast from an audition in Los Angeles, California.
[edit] 2009: Debut, first single album and collaborations

SM first released a teaser preview of the group via YouTube on August 24, introducing them as "Asia's Pop Dance Group." For five days, SM individually released information through news portals and posted pictures of each member on SM Town's official website, starting with Korean member Sulli on August 26, Taiwanese-American member Amber on August 27, Korean-American member Krystal on August 28, Korean member Luna on August 29, and lastly the Chinese member Victoria on August 30.

On September 1, the group's first single "La Cha Ta" (stylized as "LA chA TA") was digitally released. Following their first performance at the Samseong-dong Fashion Center on September 2, the music video was screened and released online the next day. The group's first broadcast performance of "La Cha Ta" was held at MBC's music show Show! Music Core on September 5.

On October 7, the group also released the electro-pop version of the digital single, "Chocolate Love", alongside their label mate Girls' Generation.[3] The single was released for the promotion of the 4th edition Blacklabel series of LG CYON phone, LG Chocolate (BL40).

On November 9, f(x) released its first single album, Chu~♡, consisting of 3 songs.

On December 19 and 20, f(x) appeared as special guests on Into the New World concert of their label-mate girl group, Girls' Generation, in Olympic Fencing Gymnasium.
[edit] 2010: First mini-album and SMTown World Tour

On January 2, the group released the Chinese track, "Lollipop", for which they collaborated with the Chinese boy band, M.I.C, to promote the LG Cyon phone. The music video was digitally released on January 12, 2010.

On February 27 and 28, the group appeared once again as special guests on Into the New World concert in Olympic Fencing Gymnasium.

On May 4, f(x) released their first mini-album, Nu ABO, consisting of 6 tracks. The lead single, "Nu ABO", topped online music portal charts Monkey3, Dosirak and Bugs.[citation needed] The song also made it to the Gaon Chart weekly number-one singles. The music video for the song was released on May 6. The group made their live comebacks on KBS's Music Bank on May 7, MBC's Music Core on May 8 and SBS's Inkigayo on May 9.[4]

On July 17, the group started performing their next promotional single, "Mr. Boogie", from their mini-album, NuABO. They had their first performance for the song on MBC's Music Core.

f(x) also participated in the SMTown Live '10 World Tour alongside their label-mates on August 21 at Seoul Jamsil Olympic Stadium. They also performed in Shanghai and Los Angeles on later dates.[5] This marks the first time f(x) and their fellow label-mate groups performed outside of Asia.

On November 24, 2010, Avex Entertainment, as well as SM Entertainment Japan, released a statement about the renewal of contracts of SM artists signed to Avex. It stated that f(x) is now signed to Avex, and its albums will be released under the said label in Japan, Taiwan, China and Hong Kong.[1]
[edit] 2011-present: First album

It was announced by SM Entertainment that Amber returned from USA after a long leave since June 2010 and that f(x) are planning to release a studio album in the first half of the year. The comeback date was rumored to be on March 2011, however, in an interview, f(x) member Krystal accidentally confirmed their comeback date by stating ,"We f(x) are set to comeback in April."[6]

The first teaser photo for their full length album entitled Pinocchio was released on April 7, 2011 at the f(x) official website. There will be a rotation of teaser photos starting from April 7 to 11 showcasing the members of the band which shows the flavor and concept of the album. The first photo was of member Krystal's face featuring her orange hair. The photo itself was primarily orange. Her photo resembles her character as "confident and chic". On April 8, 2011, Amber's teaser photo was released showcasing blonde-dyed hair and her boyish charm with her eye catching blue suit. Then on the following day, Sulli's teaser photo was released. Her photo shows a fresher and a more fun pic than the other two pictures released earlier. The picture itself was more of a reddish one and showcases her face only. The next day (April 10, 2011), the leader's photo, Victoria's, was released. Her teaser photo showcases a more feminine and a doll-like look. Then the following day, the last single teaser photo was released. The last photo belongs to the main vocalist of the band, Luna. Her photo showcases her cute face matched with retro sunglasses and two cute buns, her photo was directed to express an image of energizing fun. It was also in the same day when the last teaser photo was revealed on the group’s official website, completing the teaser photo cycle for each member. Each of the five teaser photos expressed a similar vibe of retro-glam chic, through the use of vibrant colors. A day after the photo cycle has ended, SM Entertainment released a group comeback teaser photo which showed the 5 members sitting next to each other with a white wall as their background. The MV teaser was released on April 15, 2011. The album will be released on April 20, 2011 and it was confirmed that popular girl group f(x) will hold their first comeback stage through KBS’s “Music Bank” on April 22, 2011 after a year of hiatus(approx). [7]