More "Frozen"! Disney's new animated short, "Frozen Fever," features the original crew, including Anna (Kristen Bell), Elsa (Idina Menzel), Olaf (Josh Gad), Sven (Jonathan Groff) and directors Chris Buck and Jennifer Lee. The first trailer shows the gang preparing to celebrate Anna's birthday and even includes a snippet of the short's new song from Oscar-winning "Let It Go" writers Robert Lopez and Kristen Anderson-Lopez.
"Frozen Fever" will air in theaters before screenings of Disney's live-action film, "Cinderella," starring Lily James and Cate Blanchett, starting March 13. Watch a preview below: