Sony/ATV Music Publishing has signed Grammy-winning songwriter, artist and producer Mustard to a worldwide deal. The Los Angeles-based hitmaker has worked with artists including YG, Rihanna, 2 Chainz, Drake, Migos, Chris Brown, Nipsey Hussle, Big Sean and many others, and won Best R&B Song at this year’s Grammy Awards for co-writing Ella Mai’s smash single […]