Mark your calendars because the date is set for f(x)'s comeback!
That will be next week on M Countdown, and the show has confirmed it through this teaser clip~
Please see or bookmark this link ~> '4 Walls' for more posts about f(x)'s comeback.
Release Date: February 28, 2017
Release Date: January 17, 2017
Release Date: June 28, 2016
Release Date: December 10, 2016