who is ariana's best friend?
Ariana Grande. 1  Her height is 5' 2Â½ (1.58 m). 2  She is best friends with Liz Gillies, who is another star from the show. 3  Her name was inspired by Princess Oriana from Felix the Cat.  Ariana has the most Introductions (2 in Season 1, 2 in Season 2 and 3 in Season 3) in the Victorious series.