Frozen Fever

Frozen Fever is an upcoming animated short sequel to the 2013 film Frozen.

The short was announced on September 2, 2014, as part of the The Story of Frozen: Making An Animated Classic. It will feature a new, original song written by Kristen Anderson-Lopez and Robert Lopez and will premiere Spring 2015. It is unknown if the original voice actors will reprise their roles.

Synopsis
In Frozen Fever, it's Anna's birthday and Elsa and Kristoff are determined to give her the best celebration ever, but Elsa's ice powers may put more than just the party at risk. Olaf, the snowman, will also make an appearance in the toon.