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].

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

Written as a potential hit for Rihanna or Beyoncé before Sia decided to keep it for herself [6]. While there is no official version of "Unstoppable"

"Unstoppable" is widely regarded as a self-empowerment anthem. Sia - Unstoppable (With Rihanna)