On Monday, Feb. 10, the legendary director commended the "Not Like Us" rapper's performance on Instagram — and offered some insight to a historical reference he made. "I Want To Thank My Brother Kendrick For The 40 Acres And A Mule Shoutout Which Has Been The Name Of My Production Company Since NYU Grad Film School,

Hip hop artist and Pulitzer Prize winner Kendrick Lamar is known to drop what fans call “Easter eggs” into his music — imagery that would escape those unfamiliar with his art.