And this is American rapper and entrepreneur Chamillionaire.
"Wait, what?" you exclaim. "What are these two people doing in a post together?"
Well, friend, allow me to explain. It all started when someone tried to insult J.K. Rowling on Twitter, and, being the undisputed queen of Twitter, J.K. Rowling saw fit to respond in the most wonderful way.
Chamillionaire wrote the song "Ridin'", which JKR is referencing in her tweet, so of course he took it upon himself to get involved.
And J.K.'s reponse confirmed it: They are best friends now.