So, I found another video.  I just like videos, they are my favorite.  In this one, Acapella group Pentatonix sings "Mary Did You Know", and while the focus is on their fine vocalizing, I appreciate the video aspect to this song.  I think it adds a lot because one: they filmed in a cave, two: you get to see the singers, three: they filmed in a cave.  Adds drama, in my opinion.

https://www.youtube.com/watch?list=RD7GSTH3G1YIs&v=ifCWN5pJGIE