KUALA LUMPUR, Sept. 29 -- For more than a decade, Rabbit Mac has been a defining name in Malaysia's underground hip-hop scene. Known for his work with Psycho Unit (later PU4LYF Entertainment), he built a reputation for blending Tamil rap with a distinct Malaysian swagger.

But by 2022, Rabbit had faded from the spotlight, his career derailed by personal struggles and industry politics.

Now, he is back with Watch Me, the official soundtrack for the American mixed martial arts film American Warrior, starring Hollywood veteran Danny Trejo, model-turned-actor Andrew Gray, and Vishy Ayyar, directed by Gustavo Martin Benites.

It is the first time a Malaysian rapper has composed and produced a soundtrack for a theatrically released American fi...