Big Sean Reveals His Biggest Guest Feature at 2013 Grammy Awards

G.O.O.D. Music's Big Sean already has a catalog of guest features that most rappers would die for. With his upcoming sophomore album, "Hall of Fame," in the works Sean already revealed new contributions from the likes of Miguel, Jhené Aiko, Kid Cudi, Nas, Common, and his G.O.O.D. Music family. But who is the one person Sean has not yet worked with musically? We'll give you a hint: she's the most important person in his life.

Press play below to find out the answer.