Samy Elmaghribi was a mid-twentieth century Moroccan superstar. From his debut in 1948 through his professional zenith in 1956, the Jewish musician was a ubiquitous presence on radio and in concert. His popularity owed to his pioneering of modern Moroccan music and to his performance of Moroccan nationalism through song and on stage. Elmaghribi's brand of anti-colonial nationalism, however, was not that of any particular political party. Instead, he espoused what might be termed, “Moroccanism,” a territorial nationalism that placed Sultan Mohamed ben Youssef at its center. Like Elmaghribi, it enjoyed widespread support. This study demonstrates that a focus on musical culture gives voice to mainstream forms of Moroccan nationalism that have received little scholarly attention to date. It also points to the active participation of Jews in postwar MENA societies. Finally, this article reconsiders the dynamics of decolonization through study of Elmaghribi's career, which spanned colony and independent nation.