Global warmth has changed the planet. There's no snow anymore and the things are getting dryer each day. The Snow Mans needed t survive, so they've moved their souls into bubble gums. At first, people didn't realize this weird thing, but as time passes, the gums under the chairs, under the desks, behind every bed or just splatted in the streets began moving, adopting forms.
First year, the Space Station saw a pinkish spot in the north pole. Second year, the UN send troops to watch that growing phenomenon.
This is Year 10, the Bubblegum Army is now in control of the North and South pole, the giant pink goo creatures are just too strong for us. We need to hide underground, and we need to find the way to kill them. They are singing christmass songs all day, every day, driving us mad.
There's not enough baby oil in the world to remove this plague from earth. Let's hope that the global warmth makes them dry...