The legal fallout from the most significant rap rivalry of the decade has reached a critical turning point. On Friday, Universal Music Group (UMG) filed a blistering response to the ongoing appeal of Drake's lawsuit against the music corporation, arguing that the Canadian superstar is attempting to undermine the very foundation of hip-hop because he is being a sore loser over losing his high-profile beef with Kendrick Lamar. Source: Prince Williams / Getty The center of the dispute centers on Lamar's 2024 global phenomenon, "Not Like Us," which famously branded Drake a "certified pedophile.