This is a song from the Hunger Games Mockinjay movie, whose soundtrack was curated by Lorde. The New Zealand teenage songstress told Billboard in a video interview that selecting musicians to partake in the film wound up leading to some "crazy experiences," such as calling Grace Jones directly on the phone. "It was really important to me with the soundtrack that people know how involved I was," she said. "A lot of that was me reaching out to people directly, having a conversation on the phone, sending an e-mail, sending a text, because I wanted people to know that your song isn't just going to be flung into some pot and chosen later. I really cared about what was happening."