A partial High School Musical Reunion took place over the weekend and there were Instagram posts galore.

‘High School Musical’ Halloween Reunion Pictures

Vanessa Hudgens threw a big Hollwood Halloween bash and invited a string of her old Disney Channel castmates, including Ashley Tisdale, Monique Coleman and Corbin Bleu.

Coleman, 34, shared a picture of herself dressed as Dionne from Clueless, with Hudgens, 26, as Alice in Wonderland, and Tisdale, 30, decked out as her literary nemesis, the Queen of Hearts.

In Wonderland with my woes 🍭🍥🍬🎀

A photo posted by Monique Coleman (@_moniquecoleman) on

Coleman also shared a pic of herself with former HSM love interest, Corbin bleu, 26, whose Lenny Kravitz costume seriously impressed.

"As If"

A photo posted by Monique Coleman (@_moniquecoleman) on

Fellow HSM cast member, dancer Jason Williams also attended Hudgens’ exclusive party and shared a glimpse of the fun, captioning a group pic, “The crew at @vanessahudgens amazing Halloween party last night! #highschoolMusical #Reunion!!!! #squad #squadgoals #Halloween #hollywood #wildcats.”

Missing from the reunion was of course Hudgens’ ex and biggest HSM star, Zac Efron.