"It's Anna's birthday and Elsa and Kristoff are determined to give her the best celebration ever, but Elsa's icy powers may put more than just the party at risk," reads a plot description for "Frozen Fever" provided by Disney. As the studio noted, Olaf, the snowman voiced by Josh Gad in "Frozen," will also appear. No word from the studio if Gad or stars Kristen Bell, Idina Menzel and Jonathan Groff (as respectively, Anna, Elsa and Kristoff) will reprise their voice roles for the short.
Released on Nov. 22 of last year, "Frozen" grossed $1.274 billion worldwide. It won two Oscars at the Academy Awards back in March: Best Animated Feature and Best Original Song (for "Let It Go").
For reference, the films Disney has set for release next spring include "Tomorrowland" with George Clooney and Pixar's "Inside Out." The studio will also release "Cinderella" in early March.