In celebration, here is "Grotesque Creature" written by Hitoshi Sakimoto for the video game Vagrant Story.
It is nice to hear a song with 'grotesque' in the title that isn't metal and does not prominently feature vomit and/or disembowelment.
Here is another non-metal example; "Rotten Girl, Grotesque Romance" by Machigerita-P.
What is a "grotesque romance"? Is it inspired by the H.G. Wells story?
The lyrics give us a clue:
I wish I could touch your face, stroke your face, my sweetheart
Oh my, my, you have a guest?
What a pretty girl she is!
Tell me how much you love her
I'll kill her and pack her up
You can do anything you want to me
Because I love you this much, you see?
I wanna keep you completely riveted and I wanna have a collection of you
Why are you crying?
What's wrong? Oh, this one?
I'll affectionately hold a cardboard box that you'll be put in when you're dead