Creepy songs can be fun. I remember back in the 1950's at a boy scout camp learning "As you see the hearse go by" at night around the campfire. It was scary but delicious.

As you see the hearse go by
OOOHH aah ahh aahh
Think you may be the next to die
(More maniacal groans and laughter)

They put you in a wooden box
And cover you up with a heap of rocks

All goes well for about a week
Then your coffin begins to leak

The worms go in and they come out
They go in thin and they come out stout

Pus oozes out like thick rich cream
Your liver turns a ghastly green

Your eyes fall in and your teeth fall out
Your brains come trickling down your snout
(Sniff)

The moral of this story needs no explanation
It's really much better to have a cremation

Ah! What fun!