Ariana Grande and Big Sean Share the Stage in Romantic GRAMMY Performance

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GRAMMY nominee Ariana Grande was one of the featured performers on CBS’ A Very GRAMMY Christmas special on Friday, and she used it as an opportunity to bring boyfriend Big Sean on stage to perform their duet "Best Mistake."

Grande started the performance solo before Sean joined her to perform his rap verse. The newly official couple couldn’t take their eyes off each other and held hands as they walked off the stage after the performance.

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Their relationship had been rumored for months, but Grande finally confirmed it in October.

"I think the world of him, and he's an amazing person," she told Seventeen magazine. "That's kind of all there is to it."

The couple even shared a sweet behind-the-scenes photo from their performance on Instagram.

Me n my Ari

Uma foto publicada por BIGSEAN (@bigsean) em

Grande didn't dance much in her GRAMMY special performance, but she did break out some moves for a security guard back in October. Check out the adorable video below.