f(x) received their 4th '4 Walls' win from Music Bank!

fx=3+1 equals four wins for f(x)'s '4 Walls'!

Taking over Music Bank's stage, here are Luna, Amber, Krystal, and Victoria's performance and winning moments~

Congratulations f(x)!

♥ Buy f(x)'s 4th album '4 Walls'

♥ More about f(x)'s '4 Walls' here