One of the most popular songs of 2010 so far has been the song Bang(뱅) by After School (애프터스쿨). This group currently has eight members and they are Park Kahi (박지영), Kim Jung Ah (김정아), Lee Joo Yeon (이주연), Rebecca Kim (김레베카), Uee (김유진), Im Jin Ah (임진아), Oh Hye Rin (오혜린), and Park Soo Young (박수영). The are under the Pledis Entertainment label and their website can be found here.
This video oozes sex appeal. It also projects a high level of confidence and fierceness that is rarely observed from a female KPOP group. Even though it is so overtly sexual, it is in no way promoting the Asian-female sexual stereotypes of being submissive and weak. This is some of KPOP's best in my opinion.
Additionally, the girls of After School gave some phenomenal live performances for this song. Of all the live performances that I have observed by any group on youtube thus far this year, this has been the best one. Someone tell me if the link goes dead and I'll find it again.