With new member�Seo Eun Gyo in tow, Co-Ed's new female sub-group, 5dolls, made their official bow on stage through Mnet's M! Countdown on February 17th. The girls have certainly attracted a lot of attention ahead of their comeback after Jay Park starred in two of their music videos, but now it's time for the girls to do it on their own stage. And in what seems to be a norm these days, the girls will be promoting double title tracks, 'I Mean You'�and 'Lip Stains,' which combine a strong guitar sound, addictive bass, and synth by Jo Young Su, as well as a strong beat, heavy drums, and electric piano sounds from Brave Brothers. Check out their performances below!