The Wonder Girls have shown yet again that they are a world-class Kpop act by making it big on the Billboard Hit Chart. Quoting the description on the Billboard website Heatseakers Albums are considered The worlds top-selling albums by new or developing acts... And thats where the groups new single 2 Different Tears has debuted this week. As of now, theirs is the only Kpop songs on the top 25 in that list http://twlv.net/oSIBpy