Dijon Isaiah McFarlane (born June 5, 1990), known professionally as Mustard (formerly DJ Mustard), is an American record producer, DJ, record executive, songwriter, and hype man from Los Angeles, California. He is a frequent collaborator of fellow California-bred artists YG and Ty Dolla Sign; among various other records for the hip hop and R&B genres since his entrance into mainstream music with Tyga's 2011 single, "Rack City".

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