Rodney Jerome Brown, Jr. (born September 24, 1984), known professionally as RJMrLA (or simply RJ) is a rapper from Los Angeles, California. He is known for his frequent collaborations with fellow West Coast artists YG and Mustard, and was signed to their labels: 4Hunnid and 10 Summers Records respectively. [1] His most celebrated releases to date are his O.M.M.I.O. mixtape trilogy.