After building up anticipation through the release of their concept shots, MV, and full mini album, f(x) is returning full throttle back to the music stage with their new single NU ABO. Though they're entering the music fray as the new girls on the block, they're entering it with such fierce charisma that one could mistake them as experienced as their seniors. The girls impressed the crowd with their polished professionalism on and off the stage, proving that they are one of the few groups that can really rock stage performances perfectly and on point. Some fans were disappointed with the release of the full MV for their new single, stating it was not as fierce as they had hoped. Thankfully, the girls of f(x) were nothing but fierce, fierce, FIERCE on stage for their comeback performance. Their unique choreography, sound and looks will definitely take this group to the top, even with the heavy duty competition! Are you guys getting hysteric, hysteric with anticipation yet? Check it out below! http://www.youtube.com/watch?v=CoE6R5QqP1M http://www.youtube.com/watch?v=BEZLNBiR2fs