Shy about revealing his identity, rapper Sir Nostra emerged on the Cameroonian music scene in the 2010s. In a country where rap figures such as Krotal and Killa Mel carry this aesthetic, Sir Nostra stands out with debut singles like "Beleck" (2010) or featuring Killa Mel on "Bien ou bien (remix)" (2011), alongside Krotal, Duc-Z, Jack Napier and A.N.G. Crowned Best Rap Artist at the 2011 Mboa Hip Hop Awards, Sir Nostra went on to present a series of compositions that became milestones in Cameroonian rap: "Adolescent " (2011) with Killa Mel and "Ceux qui savent (manier le son)" (2011). Gradually, the rapper became part of the country's music industry, signing major featurings with Xzafrane on "Un million de problèmes" (2014) and later for "Machines à rapper" (2019). Meanwhile, Sir Nostra asserts his solo rap, between electronic beats and traditional instruments on "Follow Me" (2016), before returning to the music news for a collaborative track, "End Of Rain" (2022), bringing together Marsi Essomba, Patou Mangamba and Kyam Bandimic.