Last week, an arrest warrant was issued for Kodak Black after he violated his probation by skipping and then failing a drug test for fentanyl.

This morning, he appeared in a Broward Country courthouse to deal with the warrant.

While his lawyer and father figure Bradford Cohen argued that there was a mix-up at the lab and got a lab worker to agree that there could have been.  But the judge didn't fully buy it and Yak will have to go to rehab for 30 days.

However, he will be allowed to play Rolling Loud California this weekend before he begins his sentence.