“Elastic Heart” is the third single from Sia’s sixth studio album, 1000 Forms of Fear. The song’s music video features actor Shia LaBeouf and “Dance Moms” star Maddie Ziegler dancing an animalistic duet in a big cage.

Her father dealt with mental illness when Sia was a child. Sia tried to help him get past his illness. In the music video, Maddie represents Sia and Shia represents her father. In the end, Maddie tries to get Shia out of the cage, which represents his illness, but ultimately, he cannot get out. Therefore, the lyric, “another one bites the dust” might be referring to mental illness causing the death of another one of her loved ones.