Sia Is 'Unstoppable' on New Empowerment Anthem

Mary Ellen Matthews

Sia just dropped the latest track off her album This Is Acting, and from first listen, it clearly follows in the lineage of emotional barn-burners that have become her trademark. The single, "Unstoppable," boasts lyrics like "I'm unstoppable/I'm a Porsche with no brakes/I'm invincible/Yeah, I win every single game."

Sia Talks Meeting With Rihanna for Possible 'Anti' Songs

The song is reminiscent of something we would hear from Rihanna -- which makes sense considering Sia has penned hit songs for her before ("Diamonds") and This Is Acting is actually a collection of songs Sia wrote for other artists that were never used. 

"Unstoppable" is proving to be just that on the real-time Billboard + Twitter Trending 140 chart. The song jumped to No. 1 upon its release, becoming Sia's third straight chart-topper.

"Unstoppable" is the sixth track we've heard so far from the new album, following "Alive," "Bird Set Free," "One Million Bullets," "Cheap Thrills" and "Reaper." (Sia told Rolling Stone that those last two were written specifically with Rihanna in mind.) Fortunately, hearing Sia resort to singing her own songs herself is one heck of a silver lining, as evidenced below: