How come y'all transformed in EG, you had pony ears and long hair like a tail.

Adagio: Well I think it's because when that girl Twilight Sparkle came to this world, she brought magic with her. Not just any magic, Equestrian magic.

Aria: I think it did that because we were storing negative energy and we transformed into ponies at first until our true power was released and we became sirens.

Sonata: I don't care why it happened, I just looked cute in it. My hair was long and adorable and the ears, gorgeous.

Adagio: Sonata, you're not helping answer this question.

Sonata: This was a question.

Aria: Oh my god Sonata.