Shady’s new album was initially intended to be a Relapse sequel, but once the venomous verbalist started getting busy in the studio, he realized that this crop is an entirely new beast. Teamed with a crew of heavy hitters — including Rihanna on a menacing love-hate ballad and Lil Wayne on a Just Blaze production sampling Haddaway — Em knocks it out of the park, mixing razor-sharp metaphors with polished pop sensibility.