Watch Jay-Z and Mary J. Blige perform their Klassic Joint "Can't Knock The Hustle" live on David Letterman's show below:
WATCH: Jay Z & Mary J. Blige Perform "Can't Knock The Hustle" Live

Kevin Mazur/Getty Images for Sean Combs Jay-Z is pictured on the far right with Diddy, a current member, and Ye, a former member, of hip-hop...
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