After School's "oldest idol leader" Kahi recently posted a surprise selca picture. On the 11th, this singer wrote on her Twitter, "Muscle pain...The thing that definitely tells me I am alive and moving so that I can't deny it...On the other hand...That is why I am thankful for everything I have, even the smallest things!!! Thank U GoD." In the picture, Kahi is sporting a hair band that freshly reveals her forehead. Additionally, she is spreading out her hand and putting air in her cheeks to make the typical idol like pose. Because her appearance in this picture is much different from her usual style, it almost seems like the person is not Kahi. Fans who visited Kahi's Twitter wrote, "Kahi unni you're so pretty" and "Who are you? Are you really Kahi unni?"