Drake and Jay-Z’s simmering rivalry gets more intriguing as lyrics, Roc Nation theories, Kendrick Lamar and mysterious talk of “subpoenas” enter the conversation. Drake is eying a new beef with Jay-Z and Roc Nation. That explanation doesn’t work: Drake and Hov collaborated after that. Sign up for exclusivesSome fans believe Jay-Z and Roc Nation’s involvement with the Super Bowl Halftime Show, had Jay picking a side. Fans have theorized about possible Roc Nation connections to litigation involving Drake, but speculation is not evidence.