Ariana Grande
Before her appearance on Nickelodeon, Grande played in the musical 13 as Charlotte in 2008 and later won an award for playing that role. From 2010 to 2013, Grande played the role of Cat Valentine in the Nickelodeon show Victorious. In August 2012, it was announced that Victorious would not be returning after three seasons. However, later that month, Nickelodeon announced a spin-off show called Sam & Cat. It included Grande from Victorious with Jennette McCurdy, who played Sam Puckett from iCarly. They would replay their roles.