Elizabeth "Liz" Gillies Gillies tells PEOPLE about her friendship with Ariana Grande, whom she starred alongside in '13: The Musical' and 'Victorious.' The actress and singer also shares her ...

The cast of "Victorious" (L-R) Leon Thomas III, Matt Bennett, Avan Jogia, Elizabeth Gillies, Ariana Grande and Daniella Monet arrives at the Nickelodeon's 2011 TeenNick HALO Awards held at the ...

Ariana Grande, Daniella Monet, Avan Jogia, Victoria Justice, Elizabeth Gillies and Matt Bennett (Jesse Grant / WireImage) Jogia became a teen heartthrob when he starred as Beck Oliver in ...

Victoria Justice, Ariana Grande, Avan Jogia and Leon Thomas III were also among the big names that starred in the original ...

When Avan Jogia turned 17, his life changed in two ways. He moved to Los Angeles after landing his first acting job as teenage heartthrob "Beck Oliver" on Nickelodeon's "Victorious," and his mom ...

From left to right: Daniella Monet, Ariana Grande, Avan Jogia, Victoria Justice, Leon Thomas III, Elizabeth Gillies, and Matt Bennett in "Victorious." (Nickelodeon) A new “Victorious” spinoff ...

The cast of "Victorious" (L-R) Leon Thomas III, Matt Bennett, Avan Jogia, Elizabeth Gillies, Ariana Grande and Daniella Monet arrives at the Nickelodeon's 2011 TeenNick HALO Awards held at the ...

Ariana Grande, Daniella Monet, Avan Jogia, Victoria Justice, Elizabeth Gillies and Matt Bennett on the set of "Victorious" on February 17, 2012 in Los Angeles, CA. Jesse Grant / WireImage.