Ok, my head just exploded...
iTunes just got to Jól.. songs - which hits all the Icelanding christmas songs.
And on came "Jólasveinafylkingin" by Hurðaskellir og Stúfur - which is an admonition by the Jólasveinar (Yule Lads) to behave with extended commentary on their origin and nature. Cool.
Except the tune it is set to is "Stop the Cavalry" by Jona Lewie.
Remember, today was Gáttaþefur...