Girl group After School jump started their comeback with the release of their latest single and music video. Now the moment we've all been waiting for is here. The girl group returns with their new eighth member Lizzy as they perform Let's Do It and Bang! on Music Bank! After School definitely went through a unique change in concept and style as they went from a sad nostalgic song to a drum thumping energetic one. Many fans have been extremely excited because After School is one of the very few idol groups to not follow the "dark" trend. With their new member and a kick butt attitude, watch as the girls put on a bangin' performance on stage! http://www.youtube.com/watch?v=S12WA3Bms_c http://www.youtube.com/watch?v=CygtvCzRSng