Vanessa Hudgens threw a Halloween party on Saturday and invited many of her "High School Musical" co-stars.

The 26-year-old actress and singer welcomed Ashley Tisdale, Monique Coleman and Corbin Bleu to her festive get together, according to E! News.

"The crew at @VanessaHudgens amazing Halloween party last night," "High School Musical" dancer Jason Williams wrote on Instagram. "#highschoolMusical #Reunion!!!! #squad #squadgoals #Halloween #hollywood #wildcats."

Coleman shared photos from the evening dressed as Dionne from "Clueless," alongside Tisdale, who dressed up as the Queen of Hearts and Hudgens, who donned an "Alice in Wonderland" costume.

"In Wonderland with my woes," Coleman captioned an Instagram post with several photos from the party. Tisdale added, "Last night in Wonderland."

In Wonderland with my woes  A photo posted by Monique Coleman (@_moniquecoleman) on Nov 1, 2015 at 12:56am PDT

Another photo of Coleman shows her posing next to Bleu, who dressed up as rocker Lenny Kravitz.

 "As If"

A photo posted by Monique Coleman (@_moniquecoleman) on Nov 1, 2015 at 12:00am PDT

Even though it appears Zac Efron wasn't present at the gathering, he still remains close with his old crew.

"I continue to see all the guys from 'High School,'" Efron recently shared with E! News. "Every time we do ... there's just this look between us. It's so cool because we never forget a single moment of that experience."

The "High School Musical" group has remained close over the years, even though the last movie released on Disney Channel was seven years ago. Last year, the group came together with Kenny Ortega to honor a super-fan, who won an evening hanging out with all the cast members. The gang also made appearances at the premiere of Ortega's latest project, "Descendants."

The first "High School Musical" movie, directed by Ortega and written by Peter Barsocchini, premiered nine years ago. That film was followed by "High School Musical 2," released in 2007, and "High School Musical 3: Senior Year," released in 2008.