Birdy originally just penned the tune for herself. "'I read the three Hunger Games books in a week and because I liked them so much I wrote 'Just a Game,'" she told The Daily Telegraph. However, when the first movie adaptation went into production, the teen age singer-songwriter's co-manager, Sara Law, sent the unsolicited composition to the film company, who loved it so much they used it over the closing credits.
The English teenage singer, born Jasmine van den Bogaerde, earned her recording name when as a baby, when her mouth would open, chick-like, for food. There is an irony in Birdy recording the credit song, because of the use of the Mockinjay hybrid birds as an important symbol of hope and rebellion throughout its storyline.