Question: Black Nativity is a 2013 American musical drama film directed by Kasi Lemmons, the film stars an African American ensemble cast featuring which American hip hop recording artist, record producer, actor and entrepreneur, better known by his stage name, called what? 
Sentence (from "Nas"): He is also an entrepreneur through his own record label; he serves as associate publisher of "Mass Appeal" magazine and is the owner of a Fila sneaker store.
Relevant evidence: No