Justice, 22, shared a few photos on Instagram of the reunion, which also included Elizabeth Gillies, Leon Thomas, Daniella Money, Matt Bennett, and Avan Jogia.
"Onesie party with a few of my old frands. We're such dorks, we sat around drinking wine & eating cookies watching Victorious episodes & reminiscing. Very grateful for that time of my life," she captioned the pics, which showed some of the Nickelodeon stars dressed up in Christmas-themed onesies. (Grande wore leopard print.)
"It was great kicking it with old friends tonight," added Thomas, 22, who dressed as Santa Claus and shared a similar pic on Instagram. #victoriousforever #Lotsofloveintheroom."
Grande, 22, also posted some photos, calling her castmates "my loves for life."
Victorious ran on Nickelodean from 2010 to 2013, featuring Justice as Tori Vegas, a teen attending the Hollywood Arts High School. Grande played her friend Cat Valentine and also appeared in the spinoff Sam & Cat, with iCarly's Jennette McCurdy as Sam Puckett. That series ended in July 2014.
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