A/n: This idea has been written before but I wanted to write my own version of it (plus, inspiration!). Oh, and my exams are finally over.

Fair warning: This ended up being more drabblish then I intended.

Disclaimer: I don't own the turtles or the movies or any of the songs.

%%%%%

Disney Fever

It started a couple of days after the movie night. Everything seemed casual till then and no one saw it coming. It struck the youngest of the bunch first, who also happened to be the most vulnerable to that predicament.

The initial symptoms were waved off by everyone as Mikey's usual childish personality but what came next would make them regret for not looking into the matter sooner.

It was morning and Mikey's family had gathered in the kitchen for breakfast when they all noticed that the family chef was humming something else and not his usual T-phone ringtone as he cooked. The humming soon devolved into singing.

"Polish and wax, do laundry, and mop and shine up

Sweep again and by then it's like 7:15~"

He sung while flipping the omelette, grabbing five plates from the cupboard with his other hand and the others only stared at him with confusion, recognizing the song from one of the movies they had watched the other night.The omelettes were launched in the air and fell on the respective plates with perfect accuracy.

"And so I'll read a book!

Or maybe two or three"

He grabbed three of the five plates as he said this and frisbeed them in front of his brothers. Next he picked up a large plate with a bunch of toasts on top and bottles of ketchup and mustard, taking them to the table and placing them down.

"I'll add a few new paintings to my gallery!

I'll play guitar and knit~

And cook and basically

Just wonder when will my life begin?"

The last two plates of omelette found their way to the table, one placed infront of Mikey's seat and the other infront of Splinter.

Bowing a little, Mikey placed a coriander leaf on top of his father's plate and straightened with a smile.

"Bone Appetit!"

He exclaimed and took his place at the table, immediately digging in and his brothers shook their heads at him with fond exasperation before starting to eat their own meals.

%%%%%

Mikey kept singing one song or another the whole day, to a point where it started to become a little annoying but he paid no heed to his family's occasional complaints.

"Where the heck is that soda?"

Raph mumbled while moving aside a ketchup bottle as he rummaged through the fridge, the can of soda he had been looking for nowhere to be seen.

He ignored Mikey as the other turtle skipped into the kitchen, humming another one of those addictive songs and continued to search. When he didn't find it, Raph stood up from his crouch, slamming the refrigerator door shut in the process, and stomped away with angry grumbles.

Unfazed by his actions, Mikey simply opened the door once again and quickly found the required can before throwing it at his retreating brother.

"Heads up, Raph!"

Years of ninja training and honed reflexes had him twisting around and shooting his hand forward to catch the thrown object. Confused, he looked down and blinked at the can of soda, a grin appearing on his face.

"Thanks."

That's when Mikey took it as a cue to start singing out loud and he began to dance around his elder brother while doing so.

"Hey, it's okay! It's okay! You're Welcome~"

The grin that had appeared on Raphael's face dropped into an annoyed scowl which was soon followed by the sound of a loud smack and a yelp.

%%%%%

"Donnie, I told you not to go to the junkyard while it's still daytime. You could have been seen and you should know that this wasn't safe."

The eldest lectured his genius brother for the foolish act but Donnie wasn't listening.

"I was careful! And this contraption is extremely rare, Leo, I had been searching for it for months and I couldn't pass the opportunity."

"You could have gone at night!" Leo tried to reason with the stubborn turtle, "While it's dark and people aren't working there and there is less danger of getting spotted."

Raph and Mikey watched silently from the sidelines, having learned long ago that it's never a good idea to interrupt when Leonardo is in lecture mode, lest they become the target as well.

"They were crushing the metallic trash today, at evening. There was no time left for waiting till nightfall or it would have been gone for good."

Leonardo let out a sigh as he saw a hint of excitement in his brother's eyes. Donnie really had been going to the junkyard every night to look for a certain contraption. He was smart and understood the risks of reckless behaviours well enough that Leo was certain that his younger brother must have been careful.

It would be pointless to lecture him and snuff out that spark of excitement he had gained after finally finding what he's been searching for for months.

"Alright, Donnie. Just don't do that again and tell us before going out instead of disappearing without a trace."

Donnie became a little sheepish when he pictured how Leo and the others might have been panicking when he left without a word.

"Sorry for worrying you."

"Its alright, Donnie." The blue-masked turtle gave him a small smile, indicating that he wasn't mad anymore and all was forgiven.

"For the first time in forever~

Donnie said something wroooong!"

Aaaand Mikey decided to completely ruin the moment, earning an incredulous glare from his red-masked brother which went unnoticed.

"For the first time in forever~

Leo's lecture isn't loooong~"

"Mikey..." His brothers warned with narrowed eyes, hoping he would get the hint and leave.

He didn't.

Instead, the orange-clad turtle giggled and switched the song to a different one as he draped an arm over Donnie's shoulders.

"Do you wanna build a gadget?

Something cool with big buttons!"

He draped his other arm over Leo's shoulder and pulled both brothers close, much to their agitation, before turning to Leo.

"Or you could play other games,

And make up silly names

While I throw water balloons atRaphplaying drums~"

"Go away, Mikey." Donnie and Leo chorused with flat expressions.

And Raphael just laughed at the irony that this moment was way too similar to what they had seen in the movie. Michelangelo quickly joined him in laughing, relieved that he said his brother's name in the last verse too quickly for the hothead to catch.

%%%%%

The ailment became contagious, effecting the second-eldest as well and he set out to find something that could help relieve the urge to sing, any excuse so Mikey wouldn't start teasing him.

He soon found a perfect opportunity...

The appliance twitched and sparked for a moment before it blew up, dark smoke with smell of burnt carbon wafting from it and hitting a certain blue-masked turtle.

Leonardo coughed and stepped back, waving a hand infront of his face before he glared at the busted toaster.

"Really?! I didn't even touch you!"

He pointed an accusatory finger at the inanimate object which didn't give any indication of listening to him.

Meanwhile, unnoticed by an occupied Leo, his immediately younger brother had trudged in and paused to watch the whole scene with utter amusement.

"Why do you always do this to me and not anyone else? It's not like I murdered your ancestors."

Leo mumbled in his typical self-loathing manner, once again reflecting if there was something genuinely wrong with him that the object hated him so much.

Raph couldn't hold himself back anymore when he saw his elder brother's worried face. This was pure gold!

"Aww, don't worry too much, Leo." He approached the other turtle and wrapped an arm around his shoulders, pulling him away from the counter.

"Just let it goooo.

Let it gooo~

Turn away and slam the door~"

"Not you too." The eldest groaned in agitation and his brother snickered at the look on his blackened face.

"Let it gooo~"

"Raph!"

%%%%%

She should have been surprised at this. Everyone else in the lair had been at one point and she should have been too but... a part of her completely expected this, considering how she had observed the reactions of numerous other people.

Mikey sauntered beside her with a plate full of sandwiches balanced atop his palm and he placed it in front of her as he continued his singing. The others present at the table ignored him, indicating that they had gotten used to his antics.

"Be our guest

Be our guest

Put our service to the test

Tie your napkin 'round your neck, chérie

And we provide the rest!"

A box of tissues appeared on the table, then a jug of water, a bucket of icecream– spoons and forks– sauces– snacks– fruits– drinks– more dishes. It just kept coming and coming, one thing after another, and she wondered just how much he could have sung during mealtimes in four days that his whole family was used to it.

"Soup du jour

Hot hors d'oeuvres

Why we only live to serve

Try the red stuff, it's so yummy

Don't believe me? Ask the tummy."

He sang as he dipped his finger in the pizza sauce on his plate and licked it.

Nobody noticed that a certain purple-masked turtle had disappeared as soon as Mikey had started singing that particular song in April's presence. Neither did they notice that the slice of pizza that was on Donnie's abandoned plate was sneakily picked up by the youngest and eaten.

Way to use the genius's favourite fairytale against him.

%%%%%

Leonardo was well known for his endurance and resistance. He was the one turtle who had resisted Karai's venom long enough to fight back and perform the healing hands. He had resisted the pull of unconsciousness several times before to continue fighting. Had resisted against the hallucinogenic effects of mutant mushrooms which showed him his greatest fear. He had even endured the pulsing agony felt throughout his body to rescue his family, only a day after he had woken up from a three month long coma.

Leonardo was a very resistant turtle. But even he failed to resist this thing for too long.

Afterall, one can't really resist when a song from their favourite movie is involved.

He observed the scene taking place, heard Mikey and Raph's whispered plan, and relented when they asked him to join them, the childish part of him really wanting to have some fun after seeing how the other two were enjoying themselves.

April had come over again. She had a calculus test due in the morning and Donatello had offered to help her prepare for it.

They were sitting together in the pit, a textbook and some open notebooks scattered around the place. Donnie was in the middle of explaining the method for finding the integral of an equation while scribbling something over the page in front of him and April leaned closer to understand better.

Both teenagers were oblivious to the three ninjas sneaking up behind them.

"Wow. I never knew it was this simple." She gave him grateful smile once he was finished, "You're a really good teacher, Donnie."

"Uh. Th-thanks, April. You're really good too. A-a learner, I mean! Not that you wouldn't be a good teacher, you will be a good teacher if you ever want to. Just... y-you're a good learner too." He stuttered nervously while wearing a dorky smile as he looked at the redheaded girl.

April smiled back and suddenly there were three turtles singing behind them.

"Caaaaan you feel the looove tonight~"

"Guys!"

The three brothers laughed and ran away, leaving behind a flustered and blushing Donatello.

%%%%%

Soon enough, all four turtles had become the victims. Donnie humming a tone while typing away at his laptop gave away that he too, was infected with this. How could he not? When all three of his brothers continued to tease him or each other using lyrics; For everything and almost all the time, even on patrols and during missions if circumstances weren't serious.

"GUYS!"

Mikey rushed into the living area where his three brothers were present, one punching a punching dummy, one working on his laptop and one watching his favourite show. They glanced at him questioningly as he approached, wearing an excited smile. "So I was in my room but it got boring and I thought, 'Why not read a comic?' But I have already read all of my comics and it didn't seem entertaining so I thought about something that would actually help me get rid of this boredom and some of those ideas were-"

"Just get to the point!" Raph cut in with annoyance.

"I figured we should do a group karaoke!"

The elder three shared a look before turning to look at him.

"A group karaoke?" Donnie asked with an eyeridge raised.

"Yeah." Mikey went on, "I mean, Leo could use some fun and you want to sing outloud but you never get a chance and Raph already wants to."

"Sounds fun. Let's do it." Leo agreed and turned off the episode which he had watched nearly a hundred times before.

Donnie was sceptical at first but after a moment's thought he realized that Mikey was right. He shut down his laptop and placed it to the side, standing up from the couch to join his brothers, "Count me in, too."

"Awesome!"

"So which song should we do?"

"Oh, I know!" Donnie exclaimed excitedly and his brothers turned to him, "You guys are really gonna enjoy this."

A minute later, the four turtles were dancing around and singing the song Donnie had chosen with much gusto as music played in the background, coming from Mikey's T-phone.

"Hakuna Matata!

What a wonderful phraaaase"

Donnie started and Raph sided next to him,

"Hakuna Matata!

Ain't no passin' craaaaze!"

"It means no worries!" Mikey cut in with a grin as he hopped from one place to another before jumping between his brothers,

"For the rest of your daaaays"

Then Leo joined in, "It's our problem-freeeeee"

They draped their arms over each other's shoulders and chorused,

"Philosophyyyyyy!

Hakuna Matata!"

All four brothers were beaming with huge grins by the end of their funny little performance.

They shared a look with each other and began laughing hysterically at their own silly antics, the sounds carrying through the whole lair. They decided at that moment that group karaoke was much more fun and should be done more often.

And they made sure to follow through with that thought.

%%%%%

Soon enough, it had come to a point that instead of just teasing each other or singing together, they started doing so in presence of their father too, disregarding the fact that his meditation was constantly getting interrupted.

They never did listen when he told them to stop, being to busy humming the addictive tones. After many failed attempts, Splinter figured out a solution for that; He would fight fire with fire.

That evening, he waited for them to arrive in the dojo for their training session, his face void of any emotions. The boys soon trudged in and stood in front of their sensei, waiting for his instructions.

"Let's get down to business!"

Their heads snapped up at hearing the verse, eyes widening in astonishment. A part of them was excited but a much bigger part was dreading what was to come.

"To defeat the Huns."

A hand suddenly shot out and grabbed Raphael's arm, drawing a yelp. Before anyone could register the next move, the hothead had been launched into the air and Leonardo was kicked with enough force that he slammed into a wall, the breath knocked out of him.

"Did they send me daughters,"

Splinter was suddenly behind the younger two and Mikey's eyes widened when his shoulder was grabbed, shrieking as he was picked up and twisted like a spinner before getting thrown to the ground.

Donnie was smart enough to draw his bo staff to better defend himself but only managed to block a counterfeit attack before he too, was pinned to the floor with his arm twisted painfully behind his shell and his bo staff being held by Splinter.

"When I asked for sons?"

By now, Leo and Raph had recovered themselves enough to unsheathe their weapons and charge at their sensei. They didn't even get a few feet near him when he suddenly tripped Raphael and slammed the end of wooden staff on top of Leonardo's foot, kicking their weapons out of reach in the process.

The eldest began to hop on one foot while holding the other in pain, "Ow ow ow."

Raph got up and charged like a bull but Splinter merely stepped out of the way and his hotheaded son slammed into the younger two who were just starting to get up. All three boys fell in a tangled heap as a result.

"You're the saddest bunch, I ever met

But you can bet before we're through"

One by one, all four brothers were grabbed by their mask tails before getting thrown into the far wall, from where they slid down to the ground.

"Mister, I'll make a man out of you~"

The turtles slowly sat up with loud groans and hesitantly looked up, expecting another beat down. When it didn't come and their sensei calmly dismissed them, they scurried out of the dojo as fast as their sore bodies could carry them, eyes wide in terror.

Suffice to say, they never dared to even hum the tone of any Disney song in his presense after that dreadful training session.

%%%%%

The play button on the music player which he had borrowed from Raphael's bedroom was pressed and the sound of music filled the air, breaking the silence which had fallen over the lair after his boys had left for their evening patrol.

'Maybe Disney songs aren't so bad afterall.'

Splinter mused with a nostalgic smile as he listened to the lyrics of "You'll be in my heart", the memories of his wife and his children playing in his mind.

%%%%%

A/n: My little brother sings, "You're Welcome~" whenever I thank him for something. This started happening after we watched Moana and is the inspiration for this oneshot.

P.S. I pretend to be annoyed at him but secretly enjoy it when he does that.

P.P.S. Watch the video, "TMNT 2012~You'll be in my heart" by Sandra Magamind on youtube. You guys are gonna love it! Like, really really love it.