Viewers will be seeing a lot more of iCarly‘s Jennette McCurdy and Victorious‘ Ariana Grande as Nickelodeon has greenlit the spin-off comedy Sam & Cat.

The new 20-episode series, set to premiere in 2013 with production beginning this January in L.A., sees McCurdy reprise her role as Sam Puckett and Grande continue in her role as Cat Valentine.

In Sam & Cat, the two characters play unlikely roommates who launch an after-school babysitting business. Dan Schneider (iCarly, Victorious, Zoey 101) is the new show’s creator and executive producer.

The timing for the new series comes as iCarly said goodbye last week with 6.4 million viewers tuning in for the long-running show’s season finale and the recent news that Victorious is ending its run at three seasons.

Both McCurdy and Grande recently wrapped production on Nickelodeon’s original TV movie Swindle, a comedy film based on a children’s book by popular Canadian/American author Gordon Korman.