The album features special guests such as George Clinton, Snoop Dogg, Bilal, and more — as well as already released tracks including “i,” “King Kunta,” and “The Blacker the Berry”

In a recent interview with Rolling Stone, Lamar said the album’s title was a play on the classic Harper Lee novel To Kill A Mockingbird. “Just putting the word ‘pimp’ next to ‘butterfly’… It’s a trip,” Lamar said. “That’s something that will be a phrase forever. It’ll be taught in college courses — I truly believe that.”