Okay, I watched it again and it's definitely a wig. When her hair is showing (she's not wearing a hat) and when she is wearing the hat, it's two different styles. Even the texture of the hair looks different. So I definitely think it's a wig.
I have no clue why BoA loves wearing wigs so much, but hey, it's her style. And it ain't as bad as some of the wig wearing celebs I know. I just hope it's not her permanent look (I won't complain) because I do prefer the long hair.
OH that's what you meant. Well I have no clue if they'll sell the American version on YA for customers... But I'm pretty sure BoA's album will be hitting shelves, I'm just not sure if it's national. It'll most likely come out in the obvious places first like CA, NY, GA, NJ, and VA because there's many Koreans there. If I had to guess where it was next, it might be South and Central Florida. But that's all I can really think of in the U.S. I doubt they'll be selling the Best Of however in American stores unless you're going to an Asian/Oriental or Anime stores.
-O_sLaVe