Watch: f(x)'s flawless '4 Walls' performance from this week's Inkigayo

Gracing Inkigayo's November 15th episode, here are Victoria, Krystal, Amber and Luna.  

Witness another flawless performance from the girls below~

♥ Buy f(x)'s 4th album '4 Walls'

♥ More about f(x)'s '4 Walls' here