Back in 1996, Mary J. Blige provided vocals to the hook of "Can't Knock the Hustle," the second single off of Jay-Z's debut album, Reasonable Doubt. 12 years, 12 Grammys and 70 million records sold later, Jigga Man and MJB are back at it again, co-headlining 25 shows across North America. Being billed as "The Heart of the City Tour," the former CEO of DefJam records and the Queen of Hip Hop Soul will......