After School is currently split up into sub groups because of their promotion strategy. The first sub group that is already revealed is Orange Caramel.
Currently Gahee's latest twitter update is selca with Orange Caramel on Music Core's backstage, it seems Gahee came to support the girls. Orange Caramel will have their another debut stage at Inkigayo later on 3:30PM KST and more sub groups of After School to come sooner. I can't wait for their performace ^^
source : Gahee's twitter
credits : dkpopnews.net