Guest List: JAY Z

JAY Z has always been a chameleon—especially when he pushes himself to his limits in his collaborations. On “Get This Money”, he adopts a double-time, melodious cadence, matching R. Kelly's curvaceous, half-rapped singing, while the hyper-realistic reportage of Scarface forces Hov into dark, personal territory on “This Can't Be Life”. Eminem goes toe-to-toe with him on the rap battle “Renegade”. Who won is debatable, and the track's strength lies in that tension.