The video is a parody of Run Devil Run by Girls' Generation. Of course, those of us in America might be more familiar of the cover by Kesha.
Overall, this video is fun. I think it helps to know the source material, though, to help put context to the music and parody's structure. I think this will probably be one of this year's largest parody collaborations, considering the size of the group. My hat's off to the team for their work.
Interested in the wide world of machinima? We have new movies every weekday here on WoW Moviewatch! Have suggestions for machinima we ought to feature? Toss us an email at email@example.com.