Good King Wenceslas - The Zombie Version

Now, I've had a go at singing this from "It's beginning to look a bit like Zombies" (Buy by clicking here...)

It's a great version! But is it Zombies singing or people? I had a bit of trouble scanning the start of the second verse, "Hither Zombies chase after her" but I think I made it fit.
Can Zombies sing?
I'm not sure they should even run...
Canon? You decide...
Happy Zombie Christmas!