Ariana Grande Just Proved She’s a Harry Potter Magic Expert

</p> <h2>Ariana Grande Just Proved She’s a Harry Potter Magic Expert<br /> </h2> <p> It’s official: Ariana Grande knows more about magic — of the Harry Potter variety, anyway — than the rest of us mere Muggles. In a tweet fired off early Monday morning, the Dangerous Woman singer responded to a recent update from author J.K. Rowling, using a rare only-seen-in-movies spell. </p> <p>