Ariana Grande is sharing a peek at her reunion with her “Victorious” casemates, 13 years after the beloved series ended. On June 23, the Grammy winner, 32, shared Instagram photos of herself alongside her former costars Elizabeth Gillies and Matt Bennett backstage at her Eternal Sunshine Tour, including one of Grande hugging Gilles and another of the trio embracing. Gillies also posted several photos of the reunion on social media, praising the “Wicked” star’s talents.