Everypony knows Paint Swirl as the sweetest filly in Ponyville and a literal angel. It’s so much a part of her that nopony sees her as anything different from the shy artist they know and love. Nopony knows about the badass rapper that lies beneath, MC Sky Shredder.  
While an amazingly popular rapper throughout Ponyville (and Equestria), nopony knows MC Sky Shredder’s true identity. There has been speculation, but not even the Dashes (her biggest fans) suspect that this outgoing, vulgar rapper just might be their sweet little Paint. And even when MC Sky Shredder suddenly disappears from the public, never to be heard from again, nopony makes that connection. Her identity remains forever shrouded in mystery~