Are you referring to the bit at ~4:22 here? Or if something else, link please? =D It's incredibly goofy, and also he looks totally wrong, but I'm having the proverbial "Feelings" about this.

But I am also jealous because now I want to be in a musical opera based on Tolkien. That would be awesome.

YES IT WOULD. One of my more indulgent daydreams is of being in the LotR musical.
*stands in the most acoustically favorable part of the house and belts this out*