Sia — Unstoppable

A decade-old album cut from This Is Acting is back on the global charts after a two-week gap, tracked across 76 country and platform charts today. Originally released as a promotional single in January 2016, Unstoppable has lived its longest life on TikTok, where it now soundtracks nearly ten million posts — motivational montages, glow-up edits, and dramatic series clips, including fan edits of Turkish Netflix dramas that loop the chorus over slow-motion close-ups. The song's appeal is structural: a marching pre-chorus, the "Porsche with no brakes" hook, and a build that resolves into pure self-assertion, ideal for short-form audio. Sia wrote it with Christopher Braide and reportedly intended much of This Is Acting for other singers. It remains the album's most durable export, and its re-entry follows a familiar pattern of periodic spikes.