A picture of After School's leader Kahi with the two maknaes, Nana and Lizzy, was recently posted. On the 6th on her Twitter, Kahi tweeted, "Play Girlz School! I know! When the night flows on and on!", which are the lyrics to Seo Taiji's I Know. In the picture, you can see the three members of After School together - Nana, Kahi and Lizzy. Nana's looking chic as she poses the peace 'V' sign, while Lizzy is hanging off her older sister Kahi's shoulder as she smiles cutely into the camera. The fans who saw this photo through Kahi's Twitter left comments such as, "The oldest unnie and the two maknae's are so cute together", "I'm enjoying the Play Girlz School show."