Ariana Grande kisses her 'Victorious' co-star Elizabeth Gillies

Ariana Grande hasn’t publicly moved on after splitting from rapper Big Sean earlier this year, but the singer has no trouble sharing a smooch with old co-stars!

Grande posted an Instagram video on Monday of her kissing former "Victorious" co-star Elizabeth Gillies.

"It has to be pretty, though," Gillies says before counting them down to the smooch.

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It’s a pretty chaste kiss, but you’d never know it by Gillies’ reaction. The "Sex & Drugs & Rock & Roll" star shrieks and runs around the room as Grande laughs hysterically.

According the singer, the video was "totally posted by accident," but she’s made no move to take it down, and the clip already has over 740,000 likes.

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