Kim Hyung Jun's Music High Official Photo Update: Stretching to straighten back 03.23.14

A few updates from our Jjunie from Music High's Official Website! ^^ First up, he teaches us how to do some stretching for our backs to straighten. ^^ I think I might be able to use this because my back needs to have good posture. Thanks for the tip Hyung Jun! ^^ 고마워 김형준! ^^ Thanks also to wengvann for the info. ^^ 

credits: Music High Official Website