Ariana Grande appeared in television roles.
Ariana Grande . She began her career in the Broadway musical 13 , before landing the role of Cat Valentine in the Nickelodeon television series Victorious in 2009 . The show ended after four seasons , and Grande starred in the spinoff , Sam & Cat , which ended in 2014 . She has also appeared in other theatre and television roles , and has lent her voice to animated television and films . Sam & Cat is an American teen sitcom that originally aired from June 8 , 2013 , to July 17 , 2014 , on Nickelodeon .