Rainbow was praised for their work ethic, as these girls threw away their personal reservations to deliver the best 'variety show dates' for B2ST! The girls guested on MBC's new gag show, "For the First Time", and were paired up with the B2ST boys in an effort to test their variety skills.  Acting as their blind dates, Rainbow showed off their various personal talents, such as ballet and pansori. Hilariously, the members made a 180-degree transformation midway through their talent performance, by pulling off body gags through ballet and delivering a pansori version of B2ST's "Shock." The members of B2ST were unable to hide their surprise over the situation, and attempted to escape from it as best as they could. MC Jung Hyung Don, who watched over their blind date, commented, "I want to buy Rainbow a meal for working so hard without worrying about their image."  Other cast members agreed, and praised Rainbow for not only their acting, but for the way they ran the full length to pull off their assigned roles. The episode can be seen on January 19th. [UPDATED WITH VIDEO] Source: Newsen via Nate