Queen of the Clouds is the debut studio album by Swedish singer Tove Lo. It was released on 24 September 2014 by Island Records. The album follows her first extended play Truth Serum (2014) and includes the successful singles "Habits (Stay High)" and "Not on Drugs" that first appeared on the latter record. Lo worked with several writers and producers such as The Struts, Klas Åhlund, Alexander Kronlund, Alx Reuterskiöld, and Captain Cuts. Lyrically, the album's themes center on the stages of a relationship, including passion, love and break-ups.

The album garnered generally positive reviews from music critics who praised its production and lyrical content. On 25 September 2015, a Blueprint edition of the album was announced, including tracks from Truth Serum, a new version of "Moments", as well as two new songs not previously included in any edition of the original release (uncensored version of "Scream My Name" from The Hunger Games: Mockingjay, Part 1 Original Motion Picture Soundtrack & Alesso's "Heroes (We Could Be)" featuring Tove Lo.