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.

Six months after Kendrick Lamar released his diss track "Not Like Us," Drake is taking legal action against Universal Music Group and Spotify for "artificially inflating" its popularity.

According to Drake, there’s something up with fellow rapper Kendrick Lamar’s diss track “Not Like Us” getting so popular. That’s the gist of a filing Monday in Manhattan court, where Frozen Moments LLC,

Kendrick Lamar's explicit call out of his producer Mustard on one of his new tracks has some wondering why he said the word on the beat.