In addition to tapping singers SZA and Deyra Barrera, the 17-time Grammy winner used production from frequent Taylor Swift collaborator Jack Antonoff as well as Mustard, the stage name of Dijon Isaiah McFarlane, who produced Lamar’s mega-viral hit “ Not Like Us .”

DJ Mustard is the stage name of Dijon Isaiah McFarlane, a rapper and producer who worked with Lamar GNX alongside Jack Antonoff, SZA, and more. Most notably, however, Mustard worked on Lamar’s mega-viral and controversial hit “Not Like Us,” a diss track fueling Lamar’s longtime rivalry with Drake.

Where does Kendrick Lamar's viral 'mustard meme' come from and what song on his new album 'GNX' does it originate from? Here's the meme and its origins explained.