High School Musical alums Ashley Tisdale and Vanessa Hudgens are reuniting as part of the voice cast for newly formed CMI entertainment's The Great Migration.

The actresses will be joining Ashley Benson of Pretty Little Liars, along with Big Time Rush band members Kendall Schmidt and Logan Henderson. Pop sensation Big Time Rush has also commited to providing original songs for the upcoming soundtrack.

Kevin G. Schmidt, who wrote the story, will also be featured in the cast. Here is what he had to say about this environmentally pointed tale.

"The idea for The Great Migration arrived in my email inbox via a weekly newsletter from an alternative physician I follow in Chicago. The film centers on a group of characters that encounter a mutated predator threatening to destroy the balance of their environment."

The movie will be created using pre-visualization, which will provide a high quality animation below current market price. The Great Migration is expected to begin production this November.