High School Musical fans, rejoice!

While Zac Efron was unable to make the 10-year reunion telecast of the 2006 Disney Channel musical earlier this year, the 28-year-old actor did recently reunite with co-star Lucas Grabeel on Tuesday night in support of Corbin Bleu's Broadway debut in Holiday Inn.

EXCLUSIVE: 'High School Musical' Turns 10 Years Old! Cast Reflects on Surprise Disney Smash 

In a photo posted to Instagram on Wednesday, the Neighbors 2 star wrote, "@mrgrabeel and I saw @corbinbleu DANCE on AIR ala Fred Astaire last night. He tapped "Firecracker" and lit the stage on [fire] with his moves!"

Grabeel also posted a photo of the animated trio to Instagram, expressing his love for Efron and Bleu.

Efron certainly isn't shy when it comes to his affection for his former High School Musical crew, posting an epic throwback pic last spring with the caption, "So grateful I came across this picture…With the o.g. crew during one of the most cherished and exciting times of my life. Love you guys forever."

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While the original cast's careers have skyrocketed since the popular musical, the Disney franchise is still going strong, with plans to release a fourth installment in 2018.

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HSM star Vanessa Hudgens has high hopes for the new film. "I love musicals. Being able to do musicals is such a dream of mine and the fact that they’re keeping it alive and bringing it to a new generation is really wonderful," she told ET last spring.

For more on High School Music 4, watch the clip below.