f(x) has completed filming for new music video?

Following Krystal's slip about f(x)'s comeback date during a recent guest appearance on SBS's Shim Shim Tapa Radio Show, fans are growing more and more excited about the group's return. 

Yesterday, new information regarding f(x) surfaced on various fan cafes. The information reported that the group had already finished filming their music video. Also revealed was the news that their music video will be a set MV.

According to some fan accounts, more information will be released soon, and teasers are to be expected by the end of the month. SM Entertainment has not yet commented about this information circulating, so stay tuned for more updates.