Back in March, Def Jam named Joie “Joey I.E.” Manda the new president of Def Jam. Since then, the label has seen a turnaround of epic proportions. Label artists Nas, 2 Chainz, Rick Ross, and Frank Ocean each saw their summer releases hold down No. 1 spots on the Billboard charts, and it's likely the label will score another chart topper when Cruel Summer hits stores next week. With a track record like that, it's clear the house that Russell built is as powerful as ever.