Nickelodeon fans, listen up! Two of our favorite characters from "iCarly" and "Victorious" are about to team up. Ariana Grande and Jennette McCurdy have been cast in a brand new Nickelodeon pilot. But don't worry: Just because the actresses are moving on to a new project doesn't mean they're leaving the roles that made them famous behind. The show is tentatively titled "Sam & Cat," co-starring Jennette's "iCarly" character Sam Puckett and Ariana's "Victorious" character Cat Valentine.

The story will follow the girls when they move in together as roommates and start a babysitting business to rake in some extra cash. You know the Nick routine -- there's an awesome supporting cast, and of course, lots of crazy hijinks ensue.

The co-stars have nearly 4 million Twitter followers between the two of them, so it's no surprise the news began trending worldwide yesterday. Click through the slideshow below for some of our favorite reactions to the news -- including tweets from Ariana, Jennette and the show's creator, Dan Schneider.

Will you watch "Sam & Cat" once it premieres? Let us know in the comments below or tweet @HuffPostTeen!

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  • Ariana Grande

  • Jennette McCurdy

  • Dan Schneider

  • Frankie James Grande

  • Emma Elizabeth

  • katarina.

  • nickelpickle.

  • LA

  • Ari's Slore ✌

  • olivia grande. ♥

  • JENNETTE'S SUGARPIE

  • Hannah McKress Swift

  • Richard♥Loves♥Ariana

  • Nicole . . .

  • McCurds' nugget :) ♥

Correction: In a previous version of this story, Jennette McCurdy's name was incorrectly listed as "Sam McCurdy." The headline has been updated.