Sia - Unstoppable (with Rihanna) -

The song uses metaphors like a "Porsche with no brakes" and "putting my armor on" to describe building confidence and emotional resilience [3, 5].

Originally intended for Katy Perry but ultimately recorded by Beyoncé [13, 21]. Theme and Impact

The album This Is Acting is composed primarily of songs Sia wrote for other major artists that were ultimately rejected. Originally written for Adele [14]. Sia - Unstoppable (With Rihanna)

While there is no official version of "Unstoppable" featuring Rihanna , the two artists are closely linked through their frequent collaborations, most notably with Sia writing Rihanna's hit single "Diamonds" [10]. Fans often associate them due to their similar vocal textures and Sia’s history of writing songs for Rihanna, leading to popular mashups and fan-made edits that blend "Unstoppable" with tracks like "Diamonds" [4, 5]. Artist: Sia [17].

Written as a potential hit for Rihanna or Beyoncé before Sia decided to keep it for herself [6]. The song uses metaphors like a "Porsche with

Sia notably performed the song to close the 2025 Breakthrough Prize Ceremony [8].

"Unstoppable" is widely regarded as a self-empowerment anthem. Originally written for Adele [14]

The track saw a massive resurgence years after its release, becoming a global hit and a staple in advertising and motivational content [22].