KPOPALYPSE’s Christmas song roundup 2013

The k-pop industry releases lots of Christmas songs every year, ensuring that song quality in the world of k-pop goes straight to hell every December.  Braving the shitstorm of rapid-fire crimes against music perpetrated by nearly every Korean label large and small, it's time for your resident k-pop grinch to round up all the Christmas songs for 2013.  I'll be listing all the efforts in chronological order that the music videos were released, giving each one a score and showing you the incredibly scientific methods used to calculate each score that I gave.