Via tokyohive: On the August 22nd episode of HEY! HEY! HEY! Music Champ, Korean group Choshinsei/Supernova took the stage and performed "Kimi Dake wa Hanasanai", a single released back on the 10th. Before the performance, singer and comedian AMEMIYA performed his original song for the group and even made couple members of Choshinsei cry from watching various footage on this video. Check out the performance and talk of Choshinsei below! (Performance starts at the 6:01 mark)