I almost thought this was a piece of shit until the end.
The Co-Ed members (what? They haven't disbanded yet?) are at a club, hoping some people will recognize them as T-ara performs. Kangho is nowhere to be found because Kim Kwang Soo didn't want him known as a rapist and a necrophiliac. Though I could see some fangirl writing a fanfic now where Kangho goes and rapes people and his syphilis turns people into zombies.
Instead of the dancing in a box concept that other Kpop acts like, T-ara danced in a club. I was wondering why the girls kept on dancing as the zombies grew in numbers. I was waiting for someone to shout "Hey, get the fuck out of here, there are fucking zombies here."
Anyway, when the girls turned into zombies and all of the zombies started shuffling, I finally found a part I liked in this MV. Such a shame we had to sit through five minutes of nothing to get to zombie shuffling.