f(x) is back with a new song and music video. This up-beat techno song will have you dancing like nobody's watching. 
I instantly fell in love with their colorful clothing and style. Hmm...Maybe I should do a fashion post about f(x) like I did 2ne1. Anyways, the video is crazily shocking, and their mini  album Electric Shock tops U.S and Canada's iTunes chart for electronic album.  Tell us what you think, and pay attention to the girls' eyes.