The purpose of this paper is to present considerations about the use of music as a critical and radical pedagogy in an International Relations class in the Global South. How can music help students understand the processes of marginalization, resistance, and struggle? Can it be understood as a tool to be used in the classroom to transcend traditional and marginalizing pedagogies? The contribution of our proposal derives from the possibility of a symbiosis between the teaching of critical, decolonial, and postcolonial perspectives and the language used to communicate these concepts and ideas to a young audience with different backgrounds. In this sense, we bring perceptions of the engagement with music as a pedagogical tool in an undergraduate course entitled " Decolonizing International Relations: epistemic violence and emancipation in Global South." By playing songs, not only the learning process became deeper and more meaningful to students, but it also opened margins to a dialogical interaction. We share our experience hoping to contribute to a meaningful debate among scholars, inspiring teachers to engage with decolonial/critical pedagogies. [ABSTRACT FROM AUTHOR]