Kendrick Lamar performed Drake diss tracks "Euphoria" and "Not Like Us" on the Grand National Tour with SZA, keeping his beef with Drake alive.

One year ago last week, Kendrick Lamar set flames to Drake's reputation that the rap world is still feeling the embers from. In just a week, songs like "Euphoria," "6:16 In LA," and yes, "Not Like Us,

The rapper and R&B star are taking victory laps for smash hits and albums. But their co-headlining tour is still threaded with angst and reflection.