F(x) has been played on NTS in shows including The Athenian Marketplace , featured first on 4 August 2017. Songs played include 제트별 (Jet), 아이 (Love) and Rude Love.

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), 루나 (Luna), and 크리스탈 (Krystal)….