To the tune of You’re a Mean One, Mr. Grinch, by Dr. Seuss, performed by Thurl Ravenscroft:
By the way, this part:
Your soul is an appalling dump heap overflowing
with the most disgraceful assortment of deplorable
Mangled up in tangled up knots.
….is exactly as Dr. Seuss wrote it. I didn’t have to change a word!