"LADIES AND GENTLEMEN, WELCOME TO THE GRAVITY FALLS TOURIST APPRECIATION CONCERT, FEATURING LOVE HANDEL AND SEV'RAL TIMEZ TOGETHER ON STAGE FOR THE FIRST TIME EVERRRRR!" announced a booming voice.

As the boys blinked their eyes back into focus, they saw that the clearing outside the Mystery Shack had been transformed into amphitheater, and was filled to the brim with tourists, mostly from Danville and the Tri-State area, as well as townsfolk of the falls. There sat a stage at the convergence point of the crowd's seats, on which stood the two towns' favorite bands, shaking hands and preparing to play the night away.

"Oh great," muttered Dipper under his breath, "another crossover gimmick."

Phineas was in awe. Normally it would be he who would have organized such an event, but this time he was at a loss. Who could have done this? He glanced over at his step-brother.

"Ferb?"

"Don't look at me, I was with you guys this whole time." Ferb replied.

Just then, the boys saw the crowd part as Isabella, Mabel, Wendy, and Candace made their way over.

"Isabella?" Phineas gasped, "Whatcha doin?"

"While you boys were off galavanting, we decided to throw this little shindig. We thought it would really bring our groups together."

"But how did you manage all of this? Didn't you need some help? You could've asked me…" responded Phineas, feeling a bit left out.

"No need," Isabella replied, "I called the Fireside Girls. They got their 'Getting places unrealistically fast' patches, followed by their 'Using cartoon logic' patches. Oh, I almost forgot the 'Breaking the Fourth Wall' patch!"

The boys looked over to where the Fireside Girls were on stage crew, and waved. Dipper looked back to see Mabel, smiling gently at him behind almost tearing eyes.

"Uh, excuse me guys, I'll be right back…" he said, before inviting Mabel to join him on a walk. As they left, the group split up into factions. Irving, Buford, Baljeet, Soos, and David decided to check backstage, Phineas and Ferb greeted their parents, and Candace and Wendy went for a walk through the crowd together.

"So," Candace asked once they were done talking about their duck plushies (which they both had, go figure), nearly shouting over the restless crowd, "did you bust your brothers today?"

"Actually, Candace," laughed Wendy, "I didn't need to. I realized that the Corduroys all have one thing in common: our lumberjack skills. I found a way to bond with my brothers and my father at the same time— building this stage. My father and I got to talking, and I think we worked through some stuff. I think you should try it with your family. No schemes, no crazy, just… talk."

Candace silently considered this as they kept walking. Soon, the two girls reached a clearing, where Wendy's gang was watching Thompson being attacked by a group of snakes.

Just then, Candace heard, "Get off me, ya creep!" She turned and saw Robbie being flung on the ground, having been punched in the face by none other than Vanessa Doofenshmirtz herself.

"Can you believe this guy Wendy?" laughed Vanessa, blowing off her fist.

"I know, right? The nerve!" laughed Wendy right back.

"Wait you guys know each other?" Candace gasped.

"Yeah," explained Vanessa, "we met yesterday when my dad brought me up here. We were both avoiding other people, and wound up bumping into each other."

Robbie groggily got up, eyeing Candace.

"And just who might you be?" he asked, trying to come off as suave.

"Not interested." replied Candace.

As the three girls walked away, Vanessa patted Candace on the back.

"Way to go girl, you don't need no man to stand up for you."

"Yeah," replied the redhead, "but I still miss Jeremy. It's all right though, because I have you guys… and I couldn't ask for better friends."

"Should we tell her now?" asked Wendy of Vanessa, seemingly getting very excited.

"Tell me what?"

"Let's just say I called in a favor from a friend of mine…" Vanessa smiled. Before Candace could question what that meant, a roar and a light flew right by over her head, before disappearing into the crowd a short ways away. As the crowd parted, up strode Monty Monogram, who hugged Vanessa after collapsing his jetpack. Behind him was Jeremy.

"Hey babe, I got flown in."

"JEREMY!?"

"I wouldn't want to miss the show, now would I?"

Jeremy and Candace held each other in romantic embrace as Monty reunited with Vanessa. "So, what a party eh?"

Suddenly, Wendy pulled Vanessa quickly aside. "Now, when you say friend…?" Wendy began.

Vanessa smirked. "Go for it girl."

They turned, and Vanessa introduced Wendy to Monty.

"…So…" Monty gathered himself as the music started up, "do you dance?"

"Well, um, I—" Wendy stuttered, until Vanessa butted in, "She'd love to."

Meanwhile backstage, introductions were being made.

"Hi, I'm Buford." stated Buford to Grenda.

"HI I'M GRENDA, PLEASED TO MAKE YOUR AQUAINTENCE!" shouted Grenda in reply.

When the two shook hands, both were equally amazed that the other's hand could withstand the full force of their grip.

"Uh… Tough Gum?" offered Buford. (TOUGH GUM!)

"MY FAVORITE!" Grenda replied.

"Yes, and I am Candy." whispered Candy.

Baljeet just gaped, before a swift elbow from Buford prompted him to say, "And I am Baljeet. Charmed."

"I'LL SAY!"

"Quick, Baljeet, get the bear suit!" Buford whispered.

Soos observed Buford and Grenda staring at one another, along with Candy and Baljeet staring at one another, and announced, "I am Soos, the checkered flag of the human race."

From a small ways away, Ginger frowned. "I don't like that girl."

"Oh get over it," Gretchen assured her, before going off to dance with David.

Ginger walked over, grabbed Baljeet by the collar (who was now sweating profusely), and began dragging him away, telling him, "C'mon, the dancing's about to start."

"Oh yes right of course…" Baljeet sputtered.

As they left backstage, so did the two bands, who took stage and began to play.

AN: So you guys know the drill by now, the song is similar to "Rebel Let's Go", and is sung together by Love Handel and Sev'ral Timez. It's plays in the background of the next few scenes, but here are the lyrics in case you were interested.

ST: "You guys are hard rock

LH: And you guys are pop

ST: Now we're gonna play together

LH: And we're never gonna stop

ST: So we're gonna grab our auto

LH: and we'll grab our tunes

LH: Our following of adults

ST: And ours of teen swoons

CHORUS (Together):

Oh yeah, when our worlds collide

with a low bass, and vocals high

Oh yeah, when our worlds collide

Oh yeah, we're gonna coincide

when our worlds collide!

Worlds collide!

Oh yeah Oh yeah

Worlds collide!"

The music was enjoyed immensely by the crowd, which now sprung to life in a dancing mob of joy. All partook in the festivities, save the Mystery Twins, sitting by the side. Just as Dipper was about to try to say something, Isabella strode up.

"Hey guys, sorry to bother you. Can I borrow Mabel for just a second?" Dipper sighed, and gestured for Mabel to go ahead.

"Are you sure this whole 'hard to get' thing is gonna work, Mabel?" Isabella asked eagerly, once they were secluded.

"Wait for it…" Mabel replied.

Just then, Phineas ran up to them.

"Isabella, I've been looking all over for you! The band is playing, and I thought if you weren't busy…"

"Why Phineas, are you asking me to dance with you?" blushed Isabella.

"Why yes, yes I am." smiled Phineas.

As the two walked away together, Isabella mouthed "YES" back to Mabel, who mouthed back, "KEEP THAT GOING AND AFTER AROUND TEN YEARS OF BACK AND FORTH MESSING WITH EACH OTHER HE MIGHT FINALLY KISS YOU."

To which Isabella mouthed in reply, "WHAT?"

Mabel returned to see Dipper laughing at something Pacifica said as she passed by.

"What was that?" Mabel asked, raising an eyebrow.

"Nothing, she asked me if I wanted to dance, I said I was waiting on someone. Look, Mabel… I'm sorry, about… well, about everything. I guess I let my insecurities get the better of me, and I'm sorry. I love you, y'know. And today, thanks to you, I actually pushed myself… I had fun with my friends, I seized this day of summer. But I never should've said those things—"

"It's fine, sometimes I do get carried away…" Dipper followed Mabel's slightly sad gaze to where Ferb and Vanessa were dancing in the crowd. Dipper inhaled sharply.

"Hey, let's both agree, no more pointless summer romance fails, ok?" suggested Mabel.

"Deal. Awkward sibling hug?"

"Awkward sibling hug."

The two hugged, then came the "Pat pat."

"Let's never part…" whispered Mabel.

Dipper was worried that he and his sister were ever so slightly growing apart already, but he did not want to ruin the moment. He could deal with that later. It wasn't the end of the world, right?

The two got up and began to dance, until they saw that Vanessa was saying goodbye to Ferb, so that she could catch an early flight to her Mom's. Ferb was left alone, until who else but Pacifica Northwest came up and offered him a dance.

Dipper and Mabel's jaws dropped.

"So, uh… let's make a deal to not make deals, ok?" Dipper shrugged, grinning eagerly.

"Deal!"

Mabel and Dipper blasted through the crowd, one grabbing Ferb and the other Pacifica— then switching, because they'd each grabbed the wrong partner— and began to dance the night away.

"You always know just what to say!" shouted Mabel at the still silent Ferb.

Dipper and Pacifica laughed, and all the friends danced together in the front row.

Through his "Creep-o-noculars", Stan watched the whole thing from the roof of the Mystery Shack. He sniffed back tears, whispering to himself, "They're growing up. My kids, and… other kids… Also, who'dve thought I'd ever use these for more than looking at fully clothed women?… I need to reexamine my life a little bit…"

Doof came up and sat next to him awkwardly.

"So, I uh…"

"Look," Stan cut him off, "There's been a lot of gushy dialogue in this chapter, so how's about I forgive you, you forgive me for whatever I could've possibly done off screen, and let's be friends, eh?"

"Was that a fourth wall joke?" asked Doof smiling.

"You'd better believe it." Stan smiled back.

"Aw, you!"

"Let's dance, Bromeo!"

And thus the two Creepy Old Guys danced the night away atop the Shack, exchanging bits of witty advice to one another about evil and tourism, and it took all of five minutes for them to realize they were one and the same concept.

AN: So now we'll have the finale musical sequence, with all the kids and teens on stage. It's basically like every other finale sequence in Phineas and Ferb, upbeat and up tempo music with wailing trumpets and electric guitars, the whole shebang. It's all set against various colorful backgrounds and will occasionally cut back to the stage where they're singing. The characters are either singing or dancing or both, depending on the shot. This particular number has some influences of gospel music in it as well (don't ask, I just watched Hercules).

"Alright guys," said Phineas, "That's enough character development, let's give them what they're here for!"

"Shipping?" asked Isabella.

"Yea— wait no, fan service!"

"Technically, that is fan service…" interjected Mabel.

"IIIIIIIIIII'm not so sure I'm comfortable with that…" added Dipper.

Ferb blinked.

"Well said Ferb! Let's rock and roll!" said Phineas, and cued the music.

Everyone from Danville began singing lyrics from "Today is Gonna be a Great Day" by Bowling for Soup, while everyone from Gravity Falls started humming their theme song as well.

Then, an all new tune kicked in, and everyone began rocking out.

Phineas: Today started out like any other day

Dipper: And then someone came and flipped it all about

Isabella: we had fun together, and we got along so well

Mabel: and now we know who we can't do without

Danville Crew: So it was nice meeting you

Gravity Falls Crew: And it was nice meeting you too

All: Now before we go there's something we must do

CHORUS (All):

Here's my number what is yours

there's so much we can talk about

I'll go my way you go yours

but communication we can't do without

So here's all I'm asking for, pretty much

I don't want to keep you, but keep in touch!

lalalalala, lalala

Candace: now there's something to be said about our little power hour

Wendy: our friendship was a seed and now it's blossomed to a flower

Buford, Baljeet, Soos, and David: So let's get down to being friends, closer than ever before

Everyone else: Though we may have to leave, we'll leave an open door!

CHORUS:

Here's my address what is yours

let's get together sometime soon

I'll go my way you go yours

we gotta see each other more than once in a blue moon

So here's all I'm asking for, pretty much

I don't want to keep you, but keep in touch!

lalalalala, lalala

Phineas: break it down, Ferb!

Ferb (Rapping, whilst Soos beatboxes and Mabel says "yeah" and "word" every so often in the backround, and Dipper just looks very confused and uncomfortable):

Yo, you from Oregon we from Tri-state

making our way met you by mistake

I call that fate, but now

we're more similar than different I'll show ya how

we got a platypus, he don't do much

but like your pig, he's soft to the touch

you have gnomes here we have gnomes there

and the weird stuff both places is beyond compare

we both try to make the best of summer

but every so often there's a bit of a bummer

so we go on, having fun adventures

on the same network, similar premises!

Siblings and their friends when funky stuff goes down

supernatural shenanigans all across town

making the best of each and every day

we're the same at heart, what else can I say?

Now let's get back to the matter at hand

time for a solo, from our joined bands!

[Guitar solo by Love Handel followed by wordless vocals from Sev'ral Timez]

CHORUS (Up a key, with everyone singing together):

Here's my number what is yours

there's so much we can talk about

I'll go my way you go yours

but communication we can't do without

So here's all I'm asking for, pretty much

I don't want to keep you, but keep in touch!

Here's my address what is yours

let's get together sometime soon

I'll go my way you go yours

we gotta see each other more than once in a blue moon

So here's all I'm asking for, pretty much

I don't want to keep you, but keep in touch!

ONE MORE TIME!

(No music, just vocals, and a bit slower, almost sadder)

we will miss you when we go

we have to meet again

won't you miss us when we go

we really must stay friends

So here's all I'm asking for, pretty much

I don't want to keep you, but keep in touch…

[Everyone quietly hums their respective theme music, like before, except with no words, and it gradually gets quieter until it fades away. Then, the music kicks back in and it's back to the upbeat finale we all crave]

We're glad we met, and we grew so close

we have to meet again

hard to believe— we'd ever come so far!

we really must stay friends

So here's all we're asking for, until the very end

Keep in touch, thanks so much, let's just all stay FRIENDS!

LET'S ALL STAY FRIENDS

LET'S ALL STAY FRIENDS

YEAH!

(Insert cheesy jumping freeze frame sequence here, just for fun)

AN: Well, that's the last real chapter. There'll be one more, just to wrap things up, but that's all. I will also discuss my decision on whether or not I should write a sequel next chapter, so stay tuned.