Well, it's time to wrap up this fic... and to make it special, I've decided to include a song from Bad Lip Reading! XD I just couldn't resist! I really like it; it's a LOT better than any song in High School Musical, and it seems like a song Derpy would pick for the celebration. So, shoutout to Bad Lip Reading (whoever you are XD)! Also, I've altered the lyrics slightly so that they make sense for Equestria. And I'm gonna assume that they all know the lyrics, because they always seem to catch on to the musical numbers in the show pretty quick! XD

Twilight quickly disposed of Sombra's horn by shooting it off far away from Ponyville into Everfree Forest. Afterwards, Pinkie Pie had (almost immediately) set up a party to celebrate Derpy's acceptance that she had been denied for so long.

Derpy got to pick the song for the musical number of the celebration. Her selection, although a bit quirky, was still something that everypony found to be quite fun and humorous.

"Don't Stare at the Sun" by Bad Lip Reading begins... with the lyrics altered to fit the nature of Equestria.

All of the Ponyville residents were participating in a town-wide choreographed dance, one of which they had actually been rehearsing for special occasions such as this. Derpy was the first to start the vocals whilst dancing among the other ponies.

[Derpy:]
Every now and then I feel like scratching
With both of my hooves, "Hey! Howdy, you!"

[Everyone:]
Yeah, yeah!

[Derpy:]
But all I really need are apples and lasagna
Before I go to bed!

[Golden Harvest:]

C'mere, you!

Golden Harvest playfully put Derpy in a headlock and rubbed her head, making Derpy laugh a bit before they broke off and Derpy continued singing the solo:

[Derpy:]
I have a vacant stare, I'm like a robot
that's got hollow lungs

[Mares:]
I bet your hooves are strong!

[Derpy:]
With soft hide engineered to feel mare-like
I'd stay forever young, yeah!

Then, everypony started to make identical dance motions whilst joining for the chorus:

[Everyone:]
WA-HA, DA-DING-DING, CHOO-CHOO, HEY HAW
Wonder why no one that we know blows chunks every day and night
WA-HA, DA-DING-DING, CHOO-CHOO, HEY HAW
And don't stare into the sun or else your eyes will burn and drip some goo-ooo
And burn out
Can't look at the sun or else your eyes will burn out
Can't stare at the sun!

[Derpy:]
Come on, let's have some fun!

[Everyone:]
Don't stare at the sun!

Right as the bridge began, Lyra Heartstrings took the transition, dancing upright on only her hind legs (everypony wondered why she liked doing things upright, be it standing or sitting).

[Lyra Heartstrings:]
In another world, we have Daryl, Daryl the Human
And he's been waiting for a gifted young stead, ha ha ha!
Yeah, you could not pick a human that is better than
Daryl the Human of Love!

[Everyone:]
WA-HA, DA-DING-DING, CHOO-CHOO, HEY HAW
Wonder why no one that we know blows chunks every day and night
WA-HA, DA-DING-DING, CHOO-CHOO, HEY HAW
Why don't we check out all these socks and then check me out while I dance and go

Everypony then changed up their dance variation, but still following each other.

[Derpy:]
Wow! Yeah! Yes! Okay!
Now we're dancing the donk-diddy-donkey
Why'd you insist on kissing that clown?
Don't say goodbye or sayonara

[Everyone:]
All the leeches love me!

[Derpy:]
We're so glad to be here

[Everyone:]
Plinko waddy-waddy choo-wa diggin that soul
Round and round we go!

This is a dance we practiced in the square
Plinko waddy-waddy choo-wa diggin that soul
There's no way it could have been spontaneous
Plinko waddy-waddy choo-wa diggin that soul

*MEOW*

[Rarity:]
It's Opal!

[Derpy:]
I'm running weird!

For the next part, the Mane Six, Doctor Whooves, the Cutie Mark Crusaders, and Dinky Doo all took the front line with Derpy, standing upright and hooking their forelegs together while dancing.

[Everyone:]
WA-HA, DA-DING-DING, CHOO-CHOO, HEY HAW
I'm feeling no old-timey ghosts will be floating up on the ceilings
WA-HA, DA-DING-DING, CHOO-CHOO, HEY HAW
And don't stare into the sun or else your eyes will burn and drip some goo-ooo
And burn out
Can't look at the sun or else your eyes will burn out
Can't stare at the sun!
Wooooaaahh
Don't stare at the sun!

The party continued well into the night, everypony ate and drank and danced until the early hours of the morning...

(XXXX)

Somewhere deep in the uncharted regions of Everfree Forest, Sombra's spirit still lived on in the dormant horn. Although lacking actual power, Sombra was enraged, and he would most definitely uncage his wrath at the next chance he got.

"Just you wait, ponies of Equestria..." Sombra said to himself. "...I shall one day return to my full power and true form, and I shall make Equestria—no, all of the planet Equus my own! All shall suffer punishment so rightfully in place of their actions! And until then... I shall read through the books that Derpy was ever so kind as to fetch for me... they hold secrets to immense levels of power! HA HA HA HA HA HA HA HA HA HA HA HA HA HA!"

Well, this is the end of my first MLP fic. I know that this may not have been one of my best fics, just because I didn't know where to go with it, but I just wanted to give Derpy a story. She's one of my favorite background ponies, and I really don't understand why so many people were offended when she was introduced in "The Last Roundup". Anyways, I hope you all enjoyed the story for what it was worth, albeit being a bit quirky at times, and hope that you all stick around for my future fics! Keep holding on...