Some spoilers ahead for Frozen 2!
Six years ago Disney Animation Studios gambled on Frozen, a computer-animated retelling of Hans Christian Andersen’s fairy tale The Snow Queen. The female-focused princess story was risky because it countermined many of the tropes that Disney itself had so successfully established, yet it proved a cultural phenomenon and became the highest-grossing animated movie of all time, scoring an Oscar for Best Song to boot.
Source: IGN.com Frozen 2: Details on the Disney Sequel's New Songs