8.9
Fix the lipsyncing at the begining, make Kyle move his body more when he is playing guitar (it would not hurt to find a friend that can play this song and watch his fingers). Kyle is playing a distorted electric guitar at the end, I would make him change guitars (but that is just me). I like the demon and how he was drawn. I like Jack's freak out.
Very creative, I would change a few things (which I mentioned above) , things I would add, things I would take away (change kyles movements, that is something you must do. He is rocking his balls off, show that), but this is your baby, raise it how you wish.
I like this video, make one for the best song in the world and I will give you a ten ;).