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The stars of "High School Musical" are still sort of "all in this together."

Disney announced the original cast are reuniting to celebrate the 10th year anniversary of the popular TV movie.

Among those cashing in on the nostalgia are Vanessa Hudgens, Ashley Tisdale, Lucas Grabeel, Corbin Bleu, and Monique Coleman.

Some of them have even taken to Twitter to share their excitement.

But some fans are disappointed that Zac Efron missed the reunion and would have a pre-taped message instead. He played "Troy Bolton," the lead role that shot him to super-stardom.

High School Musical first premiered in January 2006 and has won various TV and music awards.

The reunion special will air on Disney Channel in the US on January 20. -- ANC Alerts, January 18, 2016