Kim Hyun Joong Comeback Stage Teaser on Music Core

I would just have a question regarding this teaser. When will they show in public the full version of Hyun Joong's rehearsal where he is wearing a sleeveless shirt and no beanie?? I am soooo DYING to see it!!! He looks so manly there!!! ^^ I keep replaying that part! ^^ 




credits: conightime@yt