Welcome to 2017.
The pop star will be a character in free-to-play mobile title Final Fantasy Brave Exvius, which was released on iOS and Android around six months ago.
Here's some footage of the character:
And here is a very strange photo:
pretty lil thing holds her own in a room of men in suits ♡ 👋🏼 I'm SO so excited to finally share that I'll be featured in FINAL FANTASY BRAVE EXVIUS *crying* 🌌♡ check out my character in the game, it's the cutest thing i've ever seen in my entire life and i'm so excited and in love with it i cannot contain myself. #FFBEWW 🌌🌌🌌🌌🌌🌌🌌🌌🌌🌌
And here's Grande cosplaying as...herself, I guess.
Note that this kind of cultural tie-in is not strictly a first for the franchise; British pop star Leona Lewis did a bunch of stuff for the release of Final Fantasy XIII, including singing the game's theme song.
Though she did not appear in the game as a cute little cartoon character with giant bunny ears.