"Meltdown" is a song from the soundtrack album The Hunger Games: Mockingjay, Part 1 – Original Motion Picture Soundtrack which features the artists Stromae, Q-Top, Lorde, Haim and Pusha T. This is the fourth song that Lorde appears on for that album, the others being "Ladder Song" and "Yellow Flicker Beat", and "This Is Not a Game".
Stromae explained how the song came about:
"She [Lorde] called my manager to get a track (for the Hunger Games: Mockingjay soundtrack). It’s a track from my album, called "Merci," and she decided to do a new track with it. I was touched by the way it was important for her to have my opinion, even with the people she wanted to invite on the track, like Pusha T and HAIM. I met her after the track was done, and she was just human, simple and really nice!"