Oz is the fourth studio album by Australian singer-songwriter Missy Higgins, and was released by Eleven on 19 September 2014. It is Higgins' first cover album, which is accompanied by a book of the same name that collects a series of essays by Higgins; using each song title as a jumping off point. The album's title refers to each of the artists covered being from Australia, as well as being a reference to the land of Oz as established in The Wizard of Oz.