With the recent wrap-up of Gossip Girl promotions, Rainbow has switched over to performing their track Not Your Girl on Music Core. The girls continued showing off their sexy side with their semi-casual wardrobe of sleeveless tops, short skirts and lots of white & plaid. Many of our readers expressed that they loved this song much more than Gossip Girl, so what do you guys think of the girls' first performance of this track? Check it out here: http://www.youtube.com/watch?v=z37fhROO-JE cr. KoreanRainbow And the girls' performance on last night's Music Bank in case you missed it: http://www.youtube.com/watch?v=pkCsCPnjsB8 cr. bwmow5 I'll admit, I had my misgivings about this group when they were first introduced to the kpop realm + when Gossip Girl was first released, but the girls have been steadily improving and this is a pretty good performance for a catchy song. Stay tuned to allkpop for more on Rainbow!