DJ Mustard, the Los Angeles producer behind many West Coast hip-hop hits, made 'Mustard on the beat, ho' one of the most recognisable producer tags of the 2010s. Heard at the start of tracks with artists such as YG and Ty Dolla Sign, the tag became shorthand for his stripped-back, club-ready sound. As his songs circulated online, the catchphrase spread into memes, edits and remixes, where it is now used less as a credit and more as a playful announcement that a beat is about to hit.