@Background Pony #F85C
Delroy: You try to rule Equestria for years… You’re tapped in the Human World for years… and now you’re trying to tear the Rainbooms friendship, tear all friendships between everypony and every human being, and try to rule both worlds?! ENOUGH!! IT IS… PAYBACK TIIIMMMMEE!!! (starts throwing tomatoes at the Dazzlings)
Uncle Dan: PAYBAAAAAACK!!! (starts throwing oranges at the Dazzlings)
(The other ducks started throwing fruit at the Dazzlings.)
Uncle Dan: (spitting strawberries at the Dazzlings out of his beak, but then ran out) Reload. (had his beak filled up with more oranges and then shoots them at the Dazzlings)
Delroy: (loads Uncle Dan with a gourd) Eat this! (shoots the gourd at Adagio in the face, knocking her down)
(The crowd of Bikini Bottomites throw rocks at Aria and Sonata, knocking them down.)
Truck Driver: (sees there are no more rocks) Hey, the rocks are all gone.
Crowd: Awwww!
SpongeBob: Folks, have I got a deal for you.
(The crowd sees the hard patties of rocks and eagerly buy them.)
Jack M. Crazyfish: All right, get them! (They start to throw the patty rocks at the Dazzlings.)

@SamthePony01
Everyone: (booing, jeering, yelling, and throwing/pelting rotten food, trash, stones, dodge balls, etc.)
Otto Mann: Dingus!
Carl Carlson: Oh, you suck!
Barney Gumble: Preachy! (throws a bottle at the Dazzlings)
Additional Fish: Boo! You Stink!
Tim Rimmer: BOOOOOO!
Mia and Tia: BOOOOOOOOOO!
Audience member: Get off the stage!
Harold the Fish: Chase’em off stage!
Bubbles the Bird: BOO!
Citizens of Bird Island: BOOOOOOOOOOOOO!
Attendee: STUPIDO!
Roper: You stink! Rip-off! This is a rip-off that you three cast upon! I am so gone! Who else will come with me and get rid of those three?!
Pearl’s Friend #2 BOOOOOO!!!!!!!
Pearl’s Friend #1 Waht a rip-off!!!
Judy the Fish: This stinks!!!
Angry Spectator #1, aka the Produce thrower: Dazzlings, go home!
Angry Spectator #2: TRAITORS!!!
Angry Spectator #3: DECEIVERS!!!
Angry Spectator #1: LOUSY DAZZLING LOVERS!!!
Zodiberg: Your music’s bad and you should feel bad!
Mr. Krabs: I’m losin’ money on this deal! (puts a $1.00 sticker over the free sign on the salad bar and grins)
Fred: (takes out a dollar to Mr. Krabs) It’s worth every penny! (pays Mr. Krabs and grabs a tomato)

So, this is what you three get for turning everyone against each other, turning a friendly competition into a battle of the bands, torturing, humiliating, and sabotaging Stygian, the Pillars, the Rainbooms, Twilight Sparkle and Sunset Shimmer, sabotaging and ambushing the Rainbooms and trying to break them apart and trying Tor take over both Equestria and the human world!

(crowd booing)

Adagio Dazzle: What’s wrong with everybody?!

(The crowd throws things at the Dazzlings)

Dazzlings: Ow! What’s happening?! Hey!

Adagio Dazzle: This is the start of the Dazzle era!

(The Dazzlings flee from the stage)

There’s an animation error that’s so hard to see of Adagio’s pendant still there for one split second despite being shattered into a million pieces by the Rainbooms.

@SamthePony01
But the Dazzlings created the Battle of the Bands. Why would they want to hurt or brainwashed anyone?

@Background Pony #EA67
Lightning McQueen: Run! Run away, Dazzlings! and stay away from my Town!

Cover Girl: Now, Everybody, repeat after me: The Dazzlings are just a bunch of clowns.
Crowd: The Dazzlings are just a bunch of clowns.
Scarlett: Now hear this: Shipwreck, Footloose, and Breaker will be on KP duty for a month.
Crowd: Shipwreck, Footloose, and Breaker will be on KP duty for a month.

@Evil Emperor Proteus
You mean they’re gonna control the entire human race of the human world and possibly the entire population of Equestria but someone failed?

Simba: Run! Run away, Dazzlings! Run away and never return!

@SamthePony01  
DODGEBALLS READY!!! (everyone starts throwing dodgeballs at the Dazzlings)

Well, I hope the Dazzlings learnt their lesson after that.

@Evil Emperor Proteus  
We’ll just have to want and find out

@Background Pony #B0A0  
IF they are in LoE it’ll probably be in an after credits scene. Or perhaps a pre-movie short. I don’t think there is room for them in the plot otherwise. Friendship Games main problem was that they tried to introduce too many new characters at once and there simply wasn’t room for them all. Sunny Flare only had 3 lines and she had no defining characteristics and poor Lemon Zest only had a single line.(but did have a defining characteristic)
 
The Dazzlings in Rainbow Rocks were just right, because there was only 3 of them.

I have a feeling they be back someday. Probley Legend of Everfree.

DAZZLINGS RETREEEAAAAAAT!!!11

Sonata doesn’t look phased at all. Yeah she knew this shit would happen eventually

@pwingbrony  
Would explain the clothing. Those clothes do not look cheap.

@Evil Emperor Proteus  
I like to imagine that, since the Sirens had to be around at the time if we are to compare the EQG world to ours, that they were literally the Sirens that would trick pirates and sailors into stealing their treasures and possessions. Maybe even shipwrecking them. And, any survivors or those that swear they encountered them were rarely ever believed. Which, kick started them having enough wealth to continue functioning among the humans. Including affording more ways to take money. So, they should be rich, but try to keep it low key.

@Goblinette  
Again, we are jumping to conclusions, we do not know the extent of the damage done to them, so it doesn’t seem harsh at all. I think them trying to enslave everyone is at least worth having food thrown at you. They got off lightly if anything, since they were not even pursued. We don’t know how the Sirens live or exist in the Human world, besides them skulking in densely occupied areas so they can feed on peoples conflict they instigate.
 
Since the Dazzlings are actually quite old(presumed roughly 1000 years since they were banished) I like to think that Adagio, as cunning as she is, has a lair somewhere stocked with loot and provisions for emergencies. That’s just my idea for them, though, as I doubt the Dazzlings have been spending all this time sitting around and not using their mind control powers. Them actually having a lair would be great if they ended up making an Equestria Girls series.
 
As for Discord, no, I don’t think he was Evil, Chaos is not evil because it is Chaos. Him being evil for tormenting people with his stupid wackiness is debatable, if his subjects didn’t like his way of doing things they could have just moved elsewhere, but since I don’t watch the show, I am unsure if it was ever clear if Luna and Celestia had Equestria taken from them by Discord when they turned him to stone or if they simply didn’t like how he was ruling and decided to take his kingdom from him. Turning someone to stone is arguably the most evil thing anyone has done in FiM(that I am aware of), and without a doubt the most evil thing if it turned out Discord was alive and conscious while a statue.

@Evil Emperor Proteus  
I’m not talking about the rainblossoms, I’m talking about the writers, They gave the sirens waaay to harsh of a punishment.  
And in their background story it seems like their gems were part of their bodies, Like embedded to their chest, And not just some jewelry like in their human form.
 
And implying discord wasn’t pure evil in his first appearance? really? He was terrorizing an entire land, And not just some god forsaken highschool.
 
But yea, If there’s a fourth movie i really hope the sirens will make an appearance

@Goblinette  
Chaos is not Evil. I don’t think the Rainbooms intended to destroy the Dazzlings gems, it was just a side-effect of defeating them in their little battle. Honestly you people are overacting, the Sirens were clear-cut villains. It’s not like they’re dead, and we don’t know what the destruction of their gems meant, we will probably see what happened to them in Legend of Everfree.

@Evil Emperor Proteus  
cough cough _{so is sunset shimmer in he first movie} cough cough  
Yet i didn’t see anyone sawing off her horn.  
And please don’t give me “Aho, but they are evil creature blah blah”, Because we already know villains can be reformed ~Freaking GOD of CHAOS.
 
I definitely think it could’ve been done differently

@Evil Emperor Proteus  
I still found it kind of heart breaking. What I didn’t like was how twilight and sunset reacted to the Sirens losing their powers :’{

@Goblinette  
The person who does that is the person trying to save the world from becoming mind-controlled slaves. The Sirens goals were quite clear, they were going to control everyone.