Disclaimer: Universal Pictures owns all rights of Pitch Perfect.

Title: The BU TreBellas

Chapter 1

Plot: What happens when two rival a cappella groups from the same university join forces to compete on America's favorite televised singing competition? You get uber talent and unexpected surprises from this insane group of people. This is a semi AU story that could have taken place between the two movies. T rated for language and good loving.

ROC House Women's Fitness Spa

Completely engaged in her pilates workout, the former leader of the Bellas and now Masters candidate tapped her bluetooth device to answer an incoming call.

"This is Aubrey Posen."

"Ms. Posen...this is Mark Burnett, Executive Producer for NBC's The Sing-Off. Are you the one who forwarded us the flash drive?"

"Yes, Mr. Burnett." she responded with hope. This was the call she was waiting for since getting the idea to submit the Bellas for the singing competition. Stopping her workout immediately, she stepped outside the club to continue her call.

"We were very impressed with the Bella's ICCA win history and would like to extend an invitation to come to Los Angeles and be one of sixteen groups competing on the 2014 season."

"Aca-Scuse Me?" she blurted out without thinking. "You were impressed?" she reiterated his compliment as she needed more validation. "Oh, my God!" she mouthed to herself.

"Yes Ms. Posen, we don't get many all female groups with as much talent as the Bellas. Are you interested in being on our show?"

"Yes! Of course we're interested!"

"Excellent! My assistant, Lindsey will be in touch with you and will take care of everything. We film August through September, will that be a problem with your University?"

"No Sir, it shouldn't. We have plenty of time to make arrangements with our professors."

"Very good! So does this mean you accept our invitation?"

"Yes Sir, on behalf of the Bellas...we accept!"

"Fantastic! It was a pleasure speaking with you Ms. Posen and we look forward to having you on our show. Please contact my assistant if you have any questions."

"Thank you Sir, and I will! See you in a few months."

Barden - Performing Arts Center

The following day Aubrey dropped the aca-bomb on the Bellas who weren't prepared for what their bile retching former captain had in store for them. Since deciding to stay on at Barden, the blonde accepted her role as part of the award winning a cappella group under the leadership of Beca and Chloe, even though she was still opinionated and tried to exert her will over others at times.

"Ladies...I have some aca-amazing news." she silenced the room with her teaser. "Please take your seats...you'll want to hear this." All but the co-captains sat on the bleachers and waited for the announcement.

"You're finally graduating and leaving Atlanta?" Without hesitation Beca stepped forward and smart mouthed to her on again, off again adversary. "Ouch!" she yelped as her red headed best friend pinched her arm.

"Be nice!" Chloe scolded her. "Let's hear what she has to say."

"I am being nice." Beca sulked, rubbing her arm, then turned to face the blonde. "Seriously, are you leaving?"

"Haha!" Aubrey responded with a fake smile, hiding her irritation for the younger woman who would always be known to her as the 'oath breaker'. "Whether you like it or not, you're stuck with me for another year, so get used to it."

"Swell." the Bella leader sighed and rolled her eyes. "Alright, we haven't got all day. What's this news of yours?"

"Okay!" She brought her hands together creating a clap as she opened with way too much enthusiasm. "I've sent in footage of our ICCA performances to NBC Studios in Los Angeles and they loved us. Anyway, we've passed their audition process and have been formally invited to compete on The Sing-Off!" Pukemeister Posen finally divulged her news to some very excited Bellas who's whoops and hollers filled the room. "We're going to be famous!"

"Whoa! Wait a minute!" Beca's voice rose a few decibels to quiet the space. "So let me get this straight. You went behind our back and submitted us, ALL ON YOUR OWN, so the Bellas could appear on some dipshit singing show on network TV?"

"Um...Erm...Um...well... When you put it that way...um, I guess I kind of did." smiling nervously, Aubrey took a defensive step away from her pint sized nemesis, then continued. "Look Bec-ah," she used her name in the usual condescending tone that felt like fingernails to a chalkboard to her replacement. "I know we haven't always seen eye to eye on things and you have the pitch pipe now-"

"Keep going..." Beca interrupted her thought process, crossing her arms in front of her chest. "And let's not forget who resurrected the Bellas from performing your estrogen filled set wearing those God awful flight uniforms and crippling heels...I still can't believe I performed that crap." Letting out a sigh and rolling her eyes, Beca continued her rant. "I'm not about to let you come in here and fuck things up again. We're not only repeat ICCA champions, people actually come to our performances and like us."

"Yes...which is the reason I did this for us. Like my father once said, you can't make an omelet without breaking a few eggs, and I think you all know what I mean."

"I don't" Amy mumbled to herself as she looked around to some of the girls who nodded in agreement.

"Here's another proverb for you." Beca thought carefully about her words. "Too many cooks spoils the broth. So get the hell out of my kitchen!"

"Beca...I just wanted to do something nice for a change." Aubrey was filled with sincerity as she looked to the girls she'd grown to love. "The aca-Gods have spoken and we've been invited to L.A. for two months starting in August. This is an opportunity of a lifetime."

"What about our courses?" Ashley asked.

"Yeah." Jessica agreed. "That's a long time to miss especially since most of us are graduating next year."

"I've already spoken with the Dean, and as long as our professors let us do the course work ahead of time or make it up over the holiday break, we can go."

"Okay, that's great but how the hell are we supposed to come up with that kind of money?" The black Bella inquired. "Two months is a long time in L.A.."

"It's all handled, Cynthia Rose." The blonde answered with confidence. "Barden has agreed to sponsor us by helping with some of our expenses."

"Yeah...and we can hold more bikini car washes to make up for the rest!" Fat Amy added her two cents. "My sexy fat arse can fund the entire season for us."

"Thank you, Amy but that won't be necessary." Aubrey chuckled at the chubby blonde who always managed to make everyone laugh. "Our calendar is filled with gigs which, should cover the rest of our expenses and then some."

"Oh, my God!" Chloe squeaked. "This is aca-awesome!"

Beca shot a look of contempt at her co-captain and best friend who really was the typical ginger.

"Well guys...I hope you have fun because I'm not going." The alt-girl's mind was made up. "I'm not about to be exploited to the world on some American Idol rip off show. Plus, I don't want to be separated from Jesse that long."

"Same here." Stacie's eyes momentarily left her nails as she continued to file them. "My hunter wouldn't survive twenty-four hours without Donald."

"Squeak!" Lilly made a high pitched sound that didn't sound human.

"Oh! That means she won't leave Kolio behind either." Beca played translator for the Asian Bella who smiled mischievously in response.

"C'mon ladies, I'm willing to be apart from Uni. We're supposed to be independent women, do we really need them?"

"You're just saying that because you're not fucking him." Stacie mumbled to herself without looking up from her nails, earning a smirk from Beca and snickers from the girls within earshot. "And boy does she need to get laid..."

Trying to conceal her amusement, Beca put her arm around the blonde's shoulder. "I'll tell you what, Bree. Find a way to include the guys in this little adventure of yours, and we'll consider it."

"But Beca...it doesn't work that way. They're expecting an all female group."

"Look! You got us into this!" The Bella leader lashed back as she stepped away from her. "Find a way to make it happen or it's NO for all of us."

"That's actually a great idea." Chloe piped up. "I've watched the show since 2009 and no all female group has ever won. Maybe we could ask them to join us."

"The Bellas and Trebles competing together?" Aubrey huffed while crossing her arms. "I don't think so."

"Beca and Chloe are right." The hip hop Bella stood in between her co-captains. "We would stand a better chance against the other groups."

"I'm not saying yes but what's the maximum number of members they'll allow on a team?" Beca inquired. "And how many songs would we need to prepare?"

"Teams are limited to a maximum of twenty and we'll need a few songs to get through the earlier elimination rounds." Aubrey explained. "The show will choose genre and theme but song selection and arrangements are at the discretion of the groups. It's encouraged to have a variety of songs from different eras prepared including pop/rock, country, hip hop and R&B." she paused to take a breath. "After the elimination rounds, the remaining groups will have a week to prepare two songs that will be performed in front of a live audience but will be edited before actually airing on TV. There's also an opening number each week that we'll have to participate in as long as we're still in it."

"Damn girl! You really researched this shit." CR was officially impressed with the blonde's knowledge of the show but looked to her brunette leader for her opinion. "What do you think?"

"I think if we joined forces with the guys we could potentially kick some ass." Beca responded, then turned her attention to her predecessor. "Contact the show and see if they'll accept us with the Trebles. If they agree to it, we'll meet with the Dean and get the ball rolling." Letting out a deep sigh Beca ran her fingers through her hair. "So, what's at stake here? What's the prize?"

The aca-Nazi looked defeated because she wasn't getting her way. The Bellas were always her baby but now she was being told to include the Trebles, whom she always considered the enemy.

"Our flights and hotel accommodations would be covered by the network, however we're responsible for getting ourselves to and from rehearsals and the show. Each of us would also receive a weekly stipend to cover our meals." The post grad paused with a sigh. "The winner gets a $200,000 cash prize, a Sing-Off trophy, be part of a live traveling tour, and most importantly...a recording contract with Epic Records / Sony Music."

"Nice." Beca commented as she started to warm up to the idea as she considered their futures. "Make the call and do whatever it takes to include the guys." Beca concluded as she began to pack up her Macbook. "I'll be at the Treble house tonight so I'll discuss this with Jesse."

"Alright, aca-bitches...you can all thank me later because I, Fat Amy have the perfect name for our aca-amazing group." The Aussie took to her feet, walked passed a perturbed looking Aubrey and stood with her co-captains. Deliberately delaying giving the name, she put her arms around their shoulders and let the suspense build. "Wait for it..." she teased, then finally came out with it. "The TreBellas."

And there you have it...the story of how the Bellas and Trebles came together for a common goal and took Hollywood by storm, changing the face of America's favorite singing competition...The Sing-Off.

A/N: I've had this crazy idea in my head since last year and finally got around to writing it. I hope you enjoy the story as much as I enjoyed writing it. Please leave a review and let me know your thoughts.