From Victorious to Sam & Cat, Ariana Grande’s strange but lovable Cat Valentine remains a fan favorite, and we haven’t even mentioned her stunning voice! Check out Ariana Grande then and Now! And catch more of your favorite shows on Nick! #Nick #Nickelodeon #ArianaGrande #Victorious #SamandCat #ThenandNow Subscribe if you love Nickelodeon and want to see more: at.nick.com/Subscribe Nickelodeon is the number-one brand for kids with original cartoons, sitcoms, movies, award shows, products, and more! Here on our Nickelodeon YouTube channel you’ll find the shows and animated series you know and love like SpongeBob SquarePants, The Loud House, Teenage Mutant Ninja Turtles, Henry Danger, ALVINNN!!! and The Chipmunks, and more! You’ll also get exclusive access to our digital original series like The JoJo & BowBow Show Show, Inside Nick, and Nia Sioux’s Slumber Party plus fun Nick recipes, DIY projects, how-tos, and a behind the scenes look at the lives of your favorite Nick stars ...