This is Halloween Hetalia Style. I based off of personality, appearance and other stuff.
Shadow: America
Siamese Shadow: Canada
Pumpkin Patch Chorus: Roman Empire, Germania, Ancient Egypt
Ghosts: Ancient Rome, Germania, Ancient Egypt
Creature Under The Bed: Prussia
Man Under The Stairs: Russia
Vampires: Bulgaria and Romania
Mayor: Poland
Corpse Chorus: The Baltics, Finland, Sweden
Harlequin Demon: Romano
Werewolf: Germany
Melting Man: Holy Roman Empire
Witches: Ukraine, Liechtenstein, Seychelles, Belarus
Hanging Tree: Britain
Hanged Man: France
Clown: Denmark
Second Ghoul: Norway
Oogie Boogie Shadow: Mexico
Child Corpse Trio: The Baltics
Parent Corpses: Finland and Sweden
Director: Me

America: Dude. That is a lot of parts.
Me: Me and Trinity sing this just the two of us.
Everyone (That is singing): WHAT?
Me: Yup. I'll put it in the end. Now preform.

DIRECTOR:

Show time in...
3...
2...
1...
Let's Shine!

SHADOW:

Boys and girls of every age,
Wouldn't you like to see something strange?

SIAMESE SHADOW:

Come with us and you will see
This, our town of Halloween

PUMPKIN PATCH CHORUS:

This is Halloween, this is Halloween
Pumpkins scream in the dead of night

GHOSTS:

This is Halloween, everybody make a scene
Trick or treat till the neighbors gonna die of fright It's our town, everybody scream
In this town of Halloween

CREATURE UNDER BED:

I am the one hiding under your bed
Teeth ground sharp and eyes glowing red

MAN UNDER THE STAIRS:

I am the one hiding under your stairs
Fingers like snakes and spiders in my hair

CORPSE CHORUS:

This is Halloween, this is Halloween

VAMPIRES:

Halloween! Halloween! Halloween! Halloween!
In this town we call home Everyone hail to the pumpkin song

MAYOR:

In this town, don't we love it now?
Everybody's waiting for the next surprise

CORPSE CHORUS:

Round that corner, man hiding in the trash can
Something's waiting now to pounce, and how you'll scream

HARLEQUIN DEMON, WEREWOLF, AND MELTING MAN:

Scream! This is Halloween
Red 'n' black, slimy green

WEREWOLF:

Aren't you scared?

WITCHES:

Well, that's just fine
Say it once, say it twice
Take the chance and roll the dice
Ride with the moon in the dead of night

HANGING TREE:

Everybody scream, everybody scream

HANGED MEN:

In our town of Halloween

CLOWN:

I am the clown with the tear-away face
Here in a flash and gone without a trace

SECOND GHOUL:

I am the "who" when you call, "Who's there?"
I am the wind blowing through your hair

OOGIE BOOGIE SHADOW:

I am the shadow on the moon at night
Filling your dreams to the brim with fright

CORPSE CHORUS:

This is Halloween, this is Halloween
Halloween! Halloween!
Halloween! Halloween!
Halloween! Halloween!

CHILD CORPSE TRIO:

Tender lumplings everywhere
Life's no fun without a good scare

PARENT CORPSES:

That's our job, but we're not mean
In our town of Halloween

CORPSE CHORUS:

In this town

MAYOR:

Don't we love it now?

MAYOR WITH CORPSE CHORUS:

Everyone's waiting for the next surprise

CORPSE CHORUS:

Skeleton Jack might catch you in the back
And scream like a banshee
Make you jump out of your skin
This is Halloween, everyone scream
Won't ya please make way for a very special guy

Our man Jack is king of the pumpkin patch Everyone hail to the Pumpkin King now

EVERYONE:

This is Halloween, this is Halloween
Halloween! Halloween!
Halloween! Halloween!

CORPSE CHILD TRIO:

In this town we call home
Everyone hail to the pumpkin song

EVERYONE:

La la-la la. (Repeat a bit.)

Drew Astimal Vargas (Me): Shadow, Pumpkin Patch Chorus, Ghosts, Creature Under The Bed, Corpse Chorus, Vampires, Mayor, Witches, Hanging Tree, Clown, Oogie Boogie Shadow, Child Corpse Trio, Parent Corpses!

Trinity Dawn Sarren: Siamese Shadow, Pumpkin Patch Chorus, Man Under The Stairs, Corpse Chorus, Vampires, Harlequin Demon, Werewolf, Melting Man, Hanging Man, Second Ghoul, Child Corpse Trio, Parent Corpses!

Me: See. Not as difficult as you think.
America: You two override heros.
Trinity: Dude. We are heros.
Crystal: So why am I here?
Me: The next song is a trio. I need you and Trinity to participate.
Crystal: What about Alice?
Me: Getting ready for her cruise thing.
Trinity: No fighting.
Germany: You didn't do the disclaimer Drew.
Me: I am doing it right now.
Germany: Oh.
Me: Italy, Spain. I need you for the disclaimer.
Crystal: You forgot to put them in.
Me: What. NU~! *Goes into mental breakdown. Spain and Italy arrive.*
Spain: What happened to, chica?
Crystal: She missed you guys for the first song. Lets calm her down, eh Ita-chan?
Italy: Ve~! Drew, Spain and I forgive you.
Me: Really?
Italy and Spain: Yep!
Crystal: Now that you have calmed down. Italy and Spain have agreed to do 'Alice of Human Sacrifice' with us.
Me: But that is hard.
Trinity: Spain as Len. Me as Rin. You as Miku. Crystal as Meiko. Last but not least Italy as Kaito.
Me, Spain, Italy, Crystal: Wow. Trinity. That was great.
Me: That is our order. Germany you are the Director next time. Now Italy and Spain. Will you do the honors?
Spain: Drew does not own Hetalia or the songs but she does own the idea.
Italy: Reviews give us more inclination to sing.
Me: Bye-Bye!