Sonata Dusk is a female siren and one of the main antagonists in My Little Pony Equestria Girls: Rainbow Rocks. She is a backup singer in her band The Dazzlings, rivaling the Rainbooms. Throughout the film, Sonata Dusk is shown to be rather ditzy, excitable, and easily distracted, similar to Pinkie Pie. For example, before they sing their song in the cafeteria, Sonata is more focused on getting lunch since it is Taco Tuesday. Also, she and Pinkie are the only ones who actually seem to enjoy Snips and Snails' rap performance.
Hey Sonata. There's a character in a TV show called "Danny Phantom" who kind of looks like you with the blue hair, except the ponytail of hers is fire. Her name is Ember McLain. She has a song called "Remember". It's really good.
And here's the link to her song "Remember" on Youtube (whoever put the video together made two errors with the second verse. They put "Your heart, your heart has mended" and "Your off, now bear the shame", but the lines are "Your heart, your heart has rendered" and "Your loss, now bear the shame"): www.youtube.com/watch?v=U_oyEA…