I like many things about this, not least the proof it presents that its possible for someone to praise God, and celebrate his majesty in a legitimately Jewish manner, even with an uncovered head.
Also his facial grimaces and arm gesticulations are the equal of any performed by a hard core hasid; therefore I sense nothing but holiness and spirituality from his performance. (This is an attempt at parody: I don't believe its possible to sense such things, but if you're going to pretend that you can, why not pretend that you feel it from this fellow, too? Because of how he's dressed? Because of the style of his music. Oh.)