Rookie group Co-Ed wrapped up their debut dual track promotion on MBC's "Music Core" this week by performing "Too Late" and "Bbirbbom Bberibbom." Co-Ed is saying goodbye due to the return of their labelmates, T-ara, and they will be returning in February of 2011 with their next album release. Until then, a few of the members will be branching off into acting and MC activities to keep themselves active. Member Hyoyoung will not be performing in the goodbye stage due to her ankle injury. Check out their performances below.