After School is one of the most popular girl groups in South Korea, and is signed to Pledis Entertainment. The members were scouted by leader Kahi and other producers from Pledis until they released their first single “AH!” in 2009. Since then, the group has added five more members and have lost 3. Members Lizzy, Raina, and Nana have also created the popular subgroup, Orange Caramel. Recently, leader Kahi has “graduated“ from After School and will be pursuing a solo career and the group has now added Kaeun to the team.