Question: Just Begun is a posse cut featuring versus from several rappers including an American hip hop recording artist and record producer from New Orleans, who signed to what record label in November 2010?
Sentence (from "Just Begun"): The song is a posse cut featuring verses from rappers Jay Electronica, J. Cole and Mos Def, the latter of which also forms a duo with Talib Kweli, known collectively as Black Star.
Relevant evidence: Yes