So, this is the K-pop song that "makes it" into the US market.
Wanna read more about K-pop? Check out this article. It's got some other trendy K-pop tunes linked in it, too.
http://www.scpr.org/programs/madeleine-brand/2012/08/16/27898/k-pop-korean-pop-psy-gangnam-style-hyuna-crossover/