Kris Jenner
She's not a regular mom, she's a cool mom! The Keeping Up With the Kardashians momager plays Regina George's mom in the Mean Girls segment.
Jennifer Coolidge
They're taking the dog, dumbass! The Legally Blonde actress reprises her iconic role to star opposite Ariana's re-imagination of Reese Witherspoon's Elle Woods.
Jonathan Bennett
The pop star couldn't breathe new life into Mean Girls without incorporating Aaron Samuels himself!
Troye Sivan
"I heard she's a lesbian now and dating some girl named Aubrey," the singer-songwriter riffs in the music, satirizing Mean Girls and referencing the mistake Apple Music made in publishing the lyrics to "Thank U, Next."
Colleen Ballinger
The YouTube star and comedienne rocks her baby bump for the Bring It On-inspired portion of the wildly popular visual.
Elizabeth Gillies
Grande taps her former Victorious co-star to reprise Lindsay Lohan's Mean Girls character, and yes the resemblance is uncanny.
Matt Bennett
Grande's other Victorious co-star is the Cliff to her Torrence in the Bring It On part of the video.
Daniella Monet
A third Victorious alum can bring it!
Stefanie Drummond
Pete Davidson gets a subtle shout out in the video thanks to this Mean Girls star, who tells the camera, "Ariana broke off an engagement, so I found a guy to propose to me and I broke off an engagement."
Gabi DeMartino
The YouTube star (who is a self-proclaimed Ariana superfan and often impersonates the singer) lands a cameo role in the music video.