(Hey, guess what?

I forgot to put a disclaimer the first time! Yeah! Ahem.

Disclaimer: I do not own Adventure Time with Finn and Jake as they belong to Pendleton Ward. This fic is only for fun.

There are oc's here, maybe like-4? I own them. There is a swear, by the way. Yeah.)

Instead of climbing the ladder like a normal person, Finn let go and landed on his feet swiftly. Looking around, a smile crawled it's way to his face as he saw the bustling people of different species.

Some looked surprisingly human but Finn knew they were either mutated, half-demon/angel, or a cyborg. Most were recognizable, like humanoid whywolves and the mischievous foxes roaming around the forest.

It looked like a concert in this underground place, which immediately intrigued the invisible Marceline. "Is Finn going to a concert? Wonder what the band's called." She thought to herself and glanced down at the Human, who was making his way to the comfort room.

"Hmm, should I let him do his business like a normal person would do? Or follow him?" she thought before doing the latter. "One of the many perks of being a vampire." She smirked and flew to the men's room.(

Marceline's jaw dropped as she saw Finn. He was looking in the mirror, fixing his... white hair.

'I thought Finn was blonde!' she thought with wide eyes, curious and amazed at the same time. 'Did he dye his hair?' she asked to herself and looked closely, she gasped quietly. It was a wig, though even if it was anyone could have been fooled for the color actually looked natural on Finn but completely made him look different.

'Maybe cause it's the bear hat that it looks natural on him? Yeah, definitely the bear hat. Though what is he doing? Is he going to a costume party?'

Finn sighed and rubbed his eyes, "Alright, time to do that." He said and took something from his backpack, which was black eye paint. He applied some under his eyes and immediately from afar, looked like bags. After that, taking out two pairs of polar bear ears. "Well, atleast it resembles my bear hat." He mumbled and put it on.

He looked at himself in the mirror before doing a smile-like-smirk then proceeded to enter one of the stalls. Marceline, who was watching the whole thing, stood jaw-drop at Finn's costume. Both shocked and intrigued. Her first thought after seeing Finn transform was:

'The f**k is he doing?'

A rustling sound came from the stall Finn came in and a moment later, he was wearing a white long sleeve dress shirt with a black tie and black pants but still wore his shoes. He let out a small groan before muttering how he hated wearing formal clothes. "Ugh, well, now that the thing that's on my mind the whole time's gone, I can finally focus now!" He said, though a small hint of sarcasm was present. Which Marceline never heard from the boy.

'So that's why he was distracted all morning...' she thought to herself and quickly moved out of the way before Finn could collide with her as he exited the men's room. She blinked rapidly before the mini-heart attack subsided and flew ahead to follow him.

"Where did he go?" She whispered to herself and flew up to the high ceiling and tried to find him, "Aha!" She grinned as she saw the two pairs of bear ears and flew quickly to it. Finn was standing in front of the backdoor of the stage, nodding at two thugs that served as body guards right outside the door.

"Sir." They nodded back and stood out of the way to grant entrance to Finn, He smiled and went inside with no worries. 'Must have gotten a backstage ticket.' she thought and shook her head with a smile, 'I guess that's he's perks of being a hero.'

She entered and everywhere, people were hurrying somewhere, fixing things or checking the time then looking behind the wall to see the stage. This reminded her of one of the many concerts of the Scream Queens.

'Around this time, we usually practice...' she reminisced and picked up a sound from her vampire ears, which were much more sensitive than others, 'Ooh, a rock song, I have got to check this out' She grinned and followed the sound of her favorite genre.

She followed the sound while dodging the hurrying crew members and stopped directly at a door in which the gold words that were engraved on the door screamed loudly at her:

'Settle Off '

She pursed her lips and tried hard to remember where she heard the band. 'Wait, do they even exist?' She sighed and rubbed her head, "Dude, just look in and find out yourself, sheesh. I'm acting like Bonnie-." She stopped and shivered lightly at the thought of being a nerd like the princess. Gingerly, she opened the door and flew through the small gap.

Finn smiled broadly as he entered the door, glancing at the engraved words 'Settle Off ' the words brightened his somewhat dark stare and smirked, he entered while shoving his hands in his pockets.

4 musicians sat calmly on the upside down U-shaped couch with their respective musical instruments. They all looked up and glared slightly.

"You're late."

"You're late."

"You're late. Again."

"You're late!"

Finn rolled his eyes at the last voice, which belonged to a fairy. She, the fairy, flew up and put her hands in her hips as she zoomed in front of him and started to fix his eye paint.

"Geez! You told us you could do your own make-up but it's not even close to 'good'!" She complained as she stopped hovering and let her feet touch the ground as she pulled out a handkerchief and started to wipe away the eye paint.

Finn sighed and irritably scowled, "Well, I'm sorry, I just don't do make up cause I'm a guy." he replied but the fairy wasn't fazed as she continued to fix his eye paint. She was of average height though was still smaller than Finn of 3 inches.

She had short, light greenish blue hair and wore a white feminine yet loose long sleeved shirt under a black leather jacket and faded blue jeans with brown boots, a satchel was attached to one of the hoop belts of her jeans. On her back were amazing and beautiful wings and her name was-

"Ow, don't dab the eye, Ali."

Alison. She rolled her eyes and slapped his lightly and jokingly, "You know that I wouldn't do that if you just came early and let the make-up artists do their job." She smirked and crossed her arms. "You're also late again." a voice said behind them, which belonged to the fox hybrid sitting on the chair.

He casually played his bass guitar and stared at him with raised eyebrows, "Normally, I wouldn't care if you were late... oh yeah, I still don't. Nevermind." He went back to playing with a rather smug expression at the person beside him.

He looked rather human, though judging by the red tail, whiskers and fox ears with the somewhat scary red eyes, it was quite clear he wasn't. He wore the same clothes as Finn, a white long-sleeved dress shirt and pants though his sleeves rolled up. He had red hair with red fox ears, his face with thin whiskers and had a small stubble on his arm were also tattoos.

He smiled smugly at the cloud person beside him, who sighed and pinched the space between her eyes. "Thanks, Frank. Thanks." She said, though not serious. She crossed her arms and raised her eyebrows in an angry matter. She tapped her finger on her left arm and sighed, "Why are you late again, Pen?" she asked.

She was a cloud person, with somewhat curly hair tied in a ponytail with rectangular glasses. She wore a tank-top under a jacket, which the sleeves were rolled up to show small tattoos on her arm and wore denim jeans.

The door suddenly opened but everyone wasn't fazed, Finn or, uh, Pen(?) closed the door calmly and went back to reply to his 'friend'.

"Oh you know, the usual stalls distracted me and stuff." Finn or Pen(?) said with a careless shrug, she sighed frustratingly. "Look, Pen, I know you were the one who made this band but I'm still the manager so, you have to come here early. And yes, you're pretty good in what you do and that you're- ugh,- a 'pro' but you still have to practice with us one last time." She said.

Finn or Pen(?) rubbed his face, "Yeah, okay, I'm sorry, Erika." He said, trying to hide his exasperation. He sat on the U-shaped couch next to the last member, who was simply tapping two drumsticks lightly on the arms of the chair. "'Sup?" Pen asked and he replied with a grin, "Doing good, thanks."

"Oh yeah, have you tasted the stalls' popcorn? Their pretty good, especially if you ask for more butter, wanna try some later?" He said with an excited grin. Pen looked at his imaginary watch before nodding, "Yep, you better count on it, bud." He winked.

The person he was talking to, looked somewhat human, but hairier than Finn. He grinned wider, showing his sharp teeth. He was a werewolf. He wore the same clothing as the other two boys, but looked quite ripped. His green/yellow eyes shined brightly, which made Pen slightly irritated at the feeling of awkwardness.

Luckily, an individual knocked and opened the door. "You guys start in 5 minutes." She said and immediately closed it. Everyone stood up and got their respective instrument. Pen grabbed his guitar and smiled, seeing it was already tuned. He glanced at Alison, who winked and exited with the others.

He shook his head and went with them, a smirk crawling to his face.

Marceline, still invisible, pursed her lips, rather confused.

She was now alone in the deserted yet quite fancy room. A U-shaped couch, a 7-inch T.V., air-conditioning, paintings and music records. There was also a certain picture which caught her eye. Everyone, excluding her, in the room before heading out were in the picture, posing for the camera.

The fox hybrid, the fairy, Finn, the cloud person, and the werewolf.

She scratched her head and picked up the photo. Three questions were present. Who were they? And what is Finn doing here? And... who's Pen?

She frowned.

Has Finn been living a secret life? She contemplated this after placing the picture back. She turned around and followed Finn.

Might as well find out.

(Welp, that's done. So, thank you for your time to read this, please review and tell me what you think. By the way, 'Settle Off ' was inspired by the band 'Set it off', it was a misheard mistake from my aunt who heard it wrong. If there were grammatical errors, then I'm sorry, but still, chill bruh. Yep, until next time.)