The vocals on this song are so unusual to me. The singer has a roughness and softness to his voice at the same time. Its like an army blanket warm and comforting but still scratchy. Its the kind of voice that makes you lean forward in your chair to get a better listen.
It takes such talent to take a rock song and play it acoustic like this and it still sounds just as rocking. Watching the playing is amazing, their hands are nearly blurs.
The bass work is what really makes it rock because it really keeps the song on track and moving along with the drum beat.