Norwegian Comedians - A Capella Parody Song

I love a capella, especially Pentatonix. The 14 year old in me is a sucker for it actually.
But this parody on a capella bands is so funny:

And this is Pentatonix, for those who haven't heard aobut them:

I thought it was suiting with a Christmas Carol :)

Do you like a capella bands?

Susanne