Compton rapper RJ has been one of the hottest rappers in Southern California for a minute now, and after consistently building a fan base with his O.M.M.I.O. mixtape series, he's finally ready to release his new project Mr. LA. The first single off the project is "Brackin," produced by DJ Mustard, Larry J and Swish, and you can bump it below.

Along with the song release comes the announcement that RJ has signed to YG and DJ Mustard's joint venture 400 Summers, which combines YG's 4Hunnid Records and Mustard's 10 Summer Records. Mike WiLL Made-It also has production on the tape, which has a couple crazy features we'll tell you about later this week.

Mr. LA drops May 26. Listen to "Brackin" below.

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