f(x) Krystal and Amber posed with their trophy from 'The Show'

Coming from their 3rd '4 Walls' win, here are f(x)'s Krystal and Amber who happily posed with their trophy from 'The Show'.

If you missed it, you can watch f(x)'s performance here.

♥ Buy f(x)'s 4th album '4 Walls'

♥ More about f(x)'s '4 Walls' here