Elastic Heart

The track first surfaced as the third single from The Hunger Games: Catching Fire soundtrack on October 1, 2013. Sia collaborated with The Weeknd and Diplo to create a moody pop arrangement that relied heavily on her raspy vocals and a stark, percussive beat. The song served as an emotional anchor for the film's darker second act, blending electronic production with trip-hop influences.

Sia later re-recorded the song as a solo performance for her sixth studio album, 1000 Forms of Fear, released in June 2014. This version removed the guest verses to focus entirely on her emotive delivery. The lyrics describe resilience through the metaphor of a rubber band that stretches until it breaks, with lines like "I've got thick skin and an elastic heart" becoming some of her most quoted work.

Commercially the song achieved significant success across multiple territories. It reached the top ten in Australia and the United Kingdom while peaking at number 17 on the US Billboard Hot 100. Streaming numbers remain high, with the original soundtrack version accumulating nearly two billion plays on YouTube Music by early 2026. The track is often cited alongside "Chandelier" as a defining moment in Sia's transition from behind-the-scenes songwriter to front-and-center artist. [edit]