How do I leave this? It just popped up after posting a comment. Didnt even have anything to do with Ariana Grande either its pissing me off ngl

I wrote a comment on a post that had nothing to do with Ariana Grande at all and some stupid animation of her in a flower played on my screen and I get this notification??? I have no idea what this is and I cant figure out how to get out of it. I do not want to be involved in this.