4 Walls is the fourth studio album by South Korea-based girl group f(x), released by S.M. Entertainment on October 27, 2015. Lee Soo-man, former president of S.M. Entertainment, served as the executive producer of the album. It marked the group's first release as a four-member group after former member Sulli left the group in August 2015. To promote the album, f(x) appeared and performed on several music programs including M! Countdown, Music Bank and Show! Music Core. The group further embarked on its first concert tour Dimension 4 – Docking Station (2016), which visited South… read more
f(x) was a four-member (originally five-member) South Korean girl group formed by SM Entertainment active from 2009 to 2016. 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 "라차타 (LA chA TA)". The quartet consists of 宋茜 (Victoria), 엠버 (Amber/Amber Liu), 루나 (Luna), and 크리스탈 (Krystal). Krystal was first spotted by SM Entertainment in 2000, which earned her a small … read more
f(x) was a four-member (originally five-member) South Korean girl group formed by SM Entertainment active from 2009 to 2016. The name is a play on the mathematical notation for function, wi… read more
f(x) was a four-member (originally five-member) South Korean girl group formed by SM Entertainment active from 2009 to 2016. The name is a play on the mathematical notation for function, with "f" signifying "flower"… read more