For the first broadcasting of KBS Music Bank in 2010, Rainbow held a special show to celebrate the commencement of the new year. Coordinated in a slick and sexy black number, the ladies performed the hit song of 2008, One More Time by Jewelry. Of course, Rainbow mimicked the famous chest pop and finger touch move, but did not forget to put their own color into the song and choreography too (no pun intended). Near the end of the performance, the curtain of beads ascended to the ceiling to reveal that the members of Jewelry were actually on stage with them all along (am I the only one that didn't notice them back there?). They eventually joined their hoobaes on stage and finished the song together. Although they are merely rookies, Rainbow suits the sexy concept quite well, wouldn't you agree? If you were charmed by the 7 ladies and their performance, don't hesitate any longer and join Prismatic 7 this instant! It's an order.