Music Core excites fans for f(x)'s '4 Walls' comeback

Just a week to go before we see f(x) back on stage!

Adding to the excitement, here's Music Core with their own teaser~

♥ Preorder f(x)'s 4th album '4 Walls'

♥ More about f(x)'s '4 Walls' here

Credits:
SMEntertainment