f(x)’s 4th album ‘4 Walls’ 네 명의 함수니들
The unique Korean girl group, f(x) has released the fourth regular album ‘4 Walls’ in the fall. Without f(x)’s past member SULI, they are returned with more mature musics in 1 year 3 months. There are various styles electronic 10 tracks in the album included a title track ‘4 Walls’, also, the world famous musicians worked for the album.