DJ Quik took to Twitter early Monday morning to express his anger with YG over 2013 business dealings. "Y'all had me engineer and record 'My Nigga' for YG and did not give me credit," Quik said in a tweet directed at YG's management company, before adding, "My lawyer has you [in] his sights." Quik then went on to confront YG directly, telling him to "be safe on the block I invented" and demanding YG send him his "engineering credits for stemming and recording vocals on your platinum song." He also demanded a Platinum plaque for his work on "My Nigga," which peaked at No. 19 on the Billboard Hot 100 chart in 2013 and was eventually certified Platinum by the RIAA.

Quik hinted at this feud back in June in a now-deleted tweet. "Guess what Compton rapper I'm about to sue?" he asked. "You'll see." YG referenced Quik's tweet in his short response, adding "Fuck the police." 

"My Nigga" came out back in 2013, so it's not exactly clear why Quik is only bringing this to light now.  YG and DJ Quik did not immediately respond to Complex's requests for comment.