Jem Aswad Senior Music EditorUniversal Music Publishing Group has signed Ariana Grande/ Justin Bieber/ Blackpink collaborator Tommy Brown to an exclusive global publishing deal.Brown worked with Ariana Grande on all six of her studio albums, including executive producing the most recent album “Positions,” as well as co-producing “Holy” by Bieber, “Ice Cream” by Blackpink, “Make Believe” by Juice WLRD and more.Jody Gerson, Chairman and CEO of UMPG, said: “Tommy is the real deal.