f(x) has arrived for their Music Bank rehearsals

f(x) is out to own Music Bank's stage!

They'll be having their comeback on tonight's show and the girls are now in the studio for their rehearsals.  Check out the photos from their arrival~ (mostly Krystal and Victoria's pics)

♥ Preorder f(x)'s 4th album '4 Walls'

♥ More about f(x)'s '4 Walls' here