The song "Unstoppable" by Sia is an empowering anthem about resilience, self-confidence and self-love. The lyrics talk about how the narrator puts on her own "armor," which represents her resolute will and strength even in times of doubt and anxiety. Despite the obstacles that life throws her way, she finds a way to stay true to herself and maintain her power and self-confidence. She expresses that she is "invincible" and "unstoppable," continuing to win every single game. The song encourages the listener to find their own "armor" and trust that they can be who they want to be no matter the circumstances.