Adagio Dazzle

Adagio Dazzle is a female siren and one of the main antagonists in My Little Pony Equestria Girls: Rainbow Rocks. She is the lead singer of her band the Dazzlings, rivaling the Rainbooms.

Development and design
In late January 2014, Meghan McCarthy was asked regarding DJ Pon-3 "Is Vinyl Scratch's canon name really Adagio Dazzle?" and answered "Nope." In early April 2014, Michael Vogel stated that "Adagio is AWESOME." Her cutie mark varies across depictions, but it always includes at least one gem.

Like those of her bandmates Sonata Dusk and Aria Blaze, Adagio Dazzle's wings are translucent and non-feathered. In the commentary, McCarthy notes that the wings resemble the fins of their siren counterparts. Her non-siren forms resemble "Tropical Dream", and her human form also resembles "Golden Hazel".

In music terms, the word "adagio" is a tempo marking indicating that music is to be played slowly.

Depiction in the series
In the season seven episode Shadow Play - Part 2, Adagio and her fellow sirens appear in flashback, creating discord among ponies with their singing, before they were defeated by the Pillars of Old Equestria and banished by Star Swirl the Bearded.

Equestria Girls: Rainbow Rocks
The Dazzlings, including Adagio Dazzle, Sonata Dusk, and Aria Blaze, appear in My Little Pony Equestria Girls: Rainbow Rocks as the main antagonists.

In the film, Adagio and the other Dazzlings are introduced in the human world. They are sirens from Equestria who were banished to the human world by Star Swirl the Bearded to prevent them from using their dark magic to conquer Equestria. They are first seen in a café causing tension between the patrons when they witness the Equestrian magic that brought Sunset Shimmer to her downfall in the first film. Some time later, the reformed Sunset gives a tour of the school to Adagio and the other Dazzlings and tries to be friendly, but she gets suspicious when Sonata randomly blurts out that they sing to "get people to do what [they] want" and Adagio gets defensive over her pendant. Soon after, they convince all of the students except the Rainbooms and Sunset with their music to turn the friendly Musical Showcase into an all-out Battle of the Bands.

Adagio and the Dazzlings use their siren's songs to control student opinion and advance through the competition bracket. When the only bands between them and first place are the Rainbooms and Trixie and the Illusions, Adagio manipulates Trixie into removing the Rainbooms from the competition entirely. In the final battle against the Rainbooms, Adagio and the Dazzlings are eventually defeated, and the gem pendants with which they controlled the students are destroyed. As a result, their inability to sing leads to them being chased off in disgrace.

Aside from flashbacks, Adagio's true form is never physically shown in the film, but she and her fellow band members gain pony-like ears, extended ponytails, and translucent fin-like wings. They also summon astral projections of their true siren forms from their pendants.

Equestria Girls: Friendship Games
A drawing of Adagio's siren form is briefly seen in My Little Pony Equestria Girls: Friendship Games during the CHS Rally Song, with purple fins. Her siren form is in one of the human Twilight Sparkle's photos.

Other depictions
Hasbro's website includes Adagio Dazzle.

IDW comics
Adagio appears alongside Aria and Sonata in their siren forms in facing off against Star Swirl the Bearded and in  using their hypnotic singing on Stygian's village.

Hasbro.com Rainbow Rocks description
''With a spellbinding style and singular sound, Adagio Dazzle came to Canterlot High determined to rule the school. Little wonder her fellow Dazzlings always follow her lead – she’s an undeniable force.''

Rainbow Rocks Encore description
''Adagio Dazzle is the lead singer of the villainous band, The Dazzlings, and wants to take over Canterlot High at the battle of the bands. Her enchanting style has the power to cast a spell on anyone who sees her.''

Merchandise
A singing Adagio Dazzle doll is listed in a Hasbro press release and has been displayed, with packaging additionally showing her pony version, both at the 2014 American International Toy Fair and on Hasbro and Kmart's online listings of the product.

A miniature doll of Adagio Dazzle is to be released as part of the Equestria Girls Minis toy line. The doll's packaging depicts Adagio as a unicorn.

The human version of both Adagio and Twilight Sparkle are portrayed on the cover of My Little Pony Equestria Girls: Rainbow Rocks - The Mane Event.

Personality
Throughout Rainbow Rocks, Adagio Dazzle is shown to be scheming, manipulative, and only concerned with being adored by others. Using her dark magic, she is able to sway the students' opinion with ease and trick Trixie into removing the Rainbooms from the competition. She also displays a degree of sadism, seen when taking advantage of Sunset Shimmer's insecurities, and a considerable level of intelligence, as she quickly recognizes the Rainbooms as a source of magic. Adagio bears contempt toward her fellow sirens Aria and Sonata, calling them "idiots" and generally disliking their company. As the leader she is shown to grow irritated when her authority is questioned.

Quotes
"The energy in this world isn't the same as in Equestria. We can only gain so much power here."

- My Little Pony Equestria Girls: Rainbow Rocks

"Ergh! I'll tell you one thing, being stuck here with you two isn't making this world any more bearable."

- To Sonata Dusk and Aria Blaze, My Little Pony Equestria Girls: Rainbow Rocks

"It does now. And we're going to use it to make everyone in this pathetic little world adore us!"

- Referring to Equestrian magic, My Little Pony Equestria Girls: Rainbow Rocks

"You'll have to excuse them. They're idiots."

- Referring to Sonata Dusk and Aria Blaze, My Little Pony Equestria Girls: Rainbow Rocks

"This is it, girls. The moment we've been waiting for."

- My Little Pony Equestria Girls: Rainbow Rocks

"Oh, no! No one's mingling! It's like there's some kind of underlying tension that could bubble to the surface at any minute!"

- My Little Pony Equestria Girls: Rainbow Rocks

"Talk about throwing down the gauntlet!"

- My Little Pony Equestria Girls: Rainbow Rocks

"Tears already? This is only the first round."

- My Little Pony Equestria Girls: Rainbow Rocks

"Oh, we know all about you, Sunset Shimmer. You've got quite the reputation at Canterlot High."

- My Little Pony Equestria Girls: Rainbow Rocks

"Told you someone would give them a shove."

- My Little Pony Equestria Girls: Rainbow Rocks

"So the Rainbooms want to turn this into a real Battle of the Bands? Then let's battle!"

- My Little Pony Equestria Girls: Rainbow Rocks