In the short, to be directed by "Frozen" directors Chris Buck ("Tarzan," "Surf's Up") and Jennifer Lee (screenwriter "Wreck-It Ralph"), it's Anna's (Kristen Bell) birthday, and Elsa (Idina Menzel) and Kristoff (Jonathan Groff) are determined to give her the best celebration ever. However, Elsa's icy powers may put the party at risk. 

Peter Del Vecho will produce, and the short will include a new song by Oscar winners Robert Lopez and Kristen Anderson-Lopez.

Get psyched about the new frozen short with our new song!! Can't wait to share.

— Robert Lopez (@lopezbobby) September 3, 2014

Directed by Chris Buck ("Tarzan," "Surf's Up") and Jennifer Lee (screenwriter "Wreck-It Ralph") from a screenplay by Lee, the voice cast of "Frozen" features Bell ("Forgetting Sarah Marshall," The Crucible), Menzel (Wicked, If/Then), Jonathan Groff (Spring Awakening), Tony Award nominees Josh Gad (The Book of Mormon) and Santino Fontana (Cinderella), Alan Tudyk (Prelude to a Kiss) and Ciarán Hinds (Cat on a Hot Tin Roof).

The film uses original songs by husband-and-wife songwriters Robert Lopez (The Book of Mormon, Avenue Q) and Kristen Anderson-Lopez as well as an original score composed by Christophe Beck ("The Muppets").

Here's how the film, produced by Peter Del Vecho, is described: "Fearless optimist Anna (voice of Bell) sets off on an epic journey—teaming up with rugged mountain man Kristoff (voice of Groff) and his loyal reindeer Sven—to find her sister Elsa (voice of Menzel), whose icy powers have trapped the kingdom of Arendelle in eternal winter. Encountering Everest-like conditions, mystical trolls and a hilarious snowman named Olaf (voice of Gad), Anna and Kristoff battle the elements in a race to save the kingdom."

Additionally, Disney has released a multi-language version of the film's hit song "Let It Go," which can be seen below.