Kendrick Lamar's Super Bowl halftime performance included 'Not Like Us' and many tracks from 'GNX,' along with other surprises.

Here's a complete Taylor Swift and Kendrick Lamar friendship timline.

Sampling “So [rt]” by Knxwledge, the ninth song on To Pimp a Butterfly is a list of Kendrick Lamar’s virtues, and an image of ...