f(x)’s 4th album “4 Wall” and the music video of their lead track “4 Walls” have been released. Listen and download on iTunes & Apple Music https://itunes.apple.com/album/4-walls-the-4th-
f(x) Official http://fx.smtown.com http://www.youtube.com/fxsmtown http://www.facebook.com/fx.smtown
f(x) 에프엑스 '4 Walls' MV ℗ S.M.Entertainment
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