She shared a picture rocking Cat's familiar red hair on her Instagram story, captioning the feels-inducing snap, "Miss Valentine." Photo credit: Instagram/ArianaGrande ...

In this photo, she’s on the far right. Grande starred alongside Victoria Justice as Cat Valentine in the Nickelodeon series “Victorious,” which ran from 2010-2013.

Obviously, the little “miss valentine” caption gives it away, though Cat didn’t have bangs on Victorious or the spin-off show Sam & Cat. Even so, we were shocked to see the red hair.

This brilliant 4-season TV show, which sees Ariana Grande in her first ever acting role, has recently seen a resurgence on ...

While Tori Vega, played by Victoria Justice, was the ostensible lead in the series, supporting actor Ariana Grande played Cat Valentine, Tori’s best friend.

Before she made it as a singer, Ariana Grande was an actor on Nickelodeon. She is best known for her role as Cat Valentine, though Grande once admitted that playing Cat affected her identity as a ...

So settle in and relive the magic that was Victorious, back before we knew Cat Valentine by her stage name Ariana Grande. 1. That Time She Didn't Care What People Thought You know what?