f(x)'s Victoria uses her language skills to help a Korean tourist in a Chinese airport.
Though promotions are over, the girls are still killing it with '4 Walls/'
f(x) shared their feelings about being back after a long hiatus.
“4 Walls,” the title track from f(x)'s new album, is a catchy and bouncy dance pop stormer that takes many cues from not only 90s and early-2000s electronic dance music, but also the artists that were raised on it.