In it, she sings "I'm here to show you who I am. Threw off the veil, it's finally time." What character is this? What is the context of that lyric? We have no idea, so throw your crazy mad speculation into the comments below!
Finally, I also want to apologize in case something goes wrong here. The video was posted on Instagram, and I've been having a hard time trying to figure out how to get an embed of it onto Blogger. I don't use Instagram, so I have no idea how it works. I think I've got it working now, but I'm still not entirely sure. If it fails, a link to the video can be found here.