Just Blaze entered JAY Z's world on 2000's The Dynasty: Roc La Familia, but the producer really turned heads when he added his hard-knocking drums and soulful hooks to four tracks on 2001's The Blueprint. He's been lacing Hov with grimy street tracks and smooth grooves ever since, and you can hear their banging studio chemistry on this collection of Just-meets-Jigga classics.