Rick Ross is begging Jaylen Brown to "end the madness" -- calling on the Boston Celtics star to get his barber to change their ways after yet another (alleged) in-game hairline catastrophe.
The Miami rapper shared his message while he was getting a lineup this week ... shortly after Brown appeared to leave his mark on Kyshawn George's Wizards jersey during a game this week.
"Whoever your barber is, tell them to stop," Ross said. "Chill with the hair follicles, those hair follicles. He’s spraying like hair from another human on there, but you playing ball, my n****.