Harry Potter star and humanitarian Emma Watson sat down with Hamilton mastermind Lin-Manuel Miranda for her #HeForShe UN campaign.

But instead of just talking about it, Watson beatboxed while Miranda made up a rap about feminism on the spot. What a mind this guy has:

Emma Watson, Drop The Beat

And here's a SHORT clip of Emma Watson beatboxing while I freestyle about #HeForShe, if you only have 3 minutes. This was so fun.

Posted by Lin-Manuel Miranda on Thursday, March 17, 2016

Emma Watson, you should only be a little embarrassed about your beatboxing! You kept it tasteful!