The troubled R&B star allegedly unleashed an aggressive, drug-fueled tirade against a female manager last month, prompting her to abruptly quit, TMZ reports.
The incident reportedly occurred on Brown's tour bus during his European trek when he cursed out Nancy Ghosh, a veteran in the music industry, over the terms of her employment.
Things got so bad, Ghosh hopped off the bus and resigned, sources connected to the tour told TMZ.
The next day, Ghosh reportedly clarified in an email to Brown's staff that she felt unsafe during the outburst, claiming Brown has a history of being "irrational and high on drugs."
A production manager on Brown's team, meanwhile, complained about Brown being verbally abusive and threatening through his lawyer, according to TMZ.
Reports of the incident come less than a week after Brown's former manager, Mike "Mike G" Guirguis, filed a lawsuit against the "Run It" artist for allegedly beating him up before the tour.
Guirguis, who worked with Brown for four years, claims the singer left him in the hospital after punching him four times in the face and neck, calling the attack unprovoked.
"Just as Brown's career finally was on a steady upward trajectory, Brown viciously attacked Mike G — the man who stood by his side without judgment," his legal team claims in the lawsuit.
Brown shot down the claims with a profanity-laced Instagram post several hours after the suit surfaced.
Ghosh, who has also worked with Kanye West, Jennifer Lopez and Justin Bieber, apparently brought up the incident with Guirguis in her email to Brown's staff, according to TMZ.
The latest allegations join a long list of problems for the 27-year-old singer. Most notably, he pled guilty to assaulting Rihanna in 2009 and was arrested in 2013 for allegedly hitting a man outside a nightclub in Washington D.C. in 2013.