Ariana Grande & Liz Gillies Recreated a 'Victorious' Scene Onstage & We Were Suddenly Transported to 2010

Her old Nickelodeon Victorious costars Matt Bennett and Liz Gilles were in attendance, and the group posed for an adorable reunion photo. Bennett and Gilles also joined Ari onstage for "thank u, next," a year after both were featured in the music video.

But that's not all. Perhaps the best part of the night was when Gillies hopped onstage to perform "Give It Up" with Grande. Now, if you don't remember that song, it's the one the duo sang together on the famous "Freak the Freak Out" episode of Victorious. 

Watch the performance, plus the original throwback scene, below.