About this app

f(x) (/ˌɛf ˈɛks/; Hangul: 에프엑스) is a South Korean girl group formed by SM Entertainment in 2009. The group is composed of four members: Victoria, Amber, Luna and Krystal. Originally a five-piece group, Sulli left the group in August 2015. Since their debut, f(x) has released four full-length albums, two extended plays, and one repackaged album.

f(x) has been recognised for their experimental style and eclectic, electropop-based sound. They are one of the few recognized K-pop groups internationally, becoming the first K-pop act to perform at SXSW. Their acclaimed second album, Pink Tape, was the only K-pop album on US music channel Fuse's '41 Best Albums of 2013'.

On July 22, 2015, f(x) released a Japanese physical single album, Summer Special Pinocchio / Hot Summer, which debuted at #23 on Oricon's weekly chart.

In August, it was announced that Sulli had officially left the group to focus on acting. The remaining four members continued as a group, releasing their fourth studio album, 4 Walls, in October. The album sold 66,000 copies upon its first week of release and was well received by critics. To promote the album's release, the group starred in a web reality program titled f(x)=1cm.

In December, they released the single "12:25 (Wish List)" as part of S.M Entertainment's Christmas project, Winter Garden. At the year-end 2015 Mnet Asian Music Awards, f(x) performed with Pet Shop Boys, and won the 'Global Fans Choice' award.

In January 2016, the group won the Disk Bonsang award at the 2016 Golden Disk Awards and commenced their first concert tour, Dimension 4 – Docking Station, in Seoul which continued with six concerts in Japan in February. On January 31,they announced their official fan club name, MeU.

On July 22, 2016, f(x) released a new single, "All Mine", through the SM Station project. The song was accompanied by a music video, directed and edited by Amber.

On November 2, 2016, f(x) released their second Japanese physical single album, 4 Walls / Cowboy, including a Japanese version of "4 Walls", along with a new song titled "Cowboy", which was performed live on the same day at the group's encore concert in Yokohama.[30] On October 16, the music video for "Electric Shock" surpassed 100 million views on YouTube, making f(x) the third Korean girl group, and sixth Korean group overall to reach this milestone.

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