Four men are accusing the singer and several members of his entourage of attacking them backstage following a Texas stop on Brown’s 11:11 Tour.

Chris Brown and several members of his entourage, along with Brown’s 11:11 Tour promoter Live Nation, are facing a lawsuit over an alleged assault that took place following Brown’s concert in Fort Worth, Texas, on Friday night.

Filed Monday (July 22) in Harris County district court by attorneys Tony Buzbee and Caroline Adams, the lawsuit claims that Brown and several accomplices “brutally and severely beat” four men — Larry Parker, Joseph Lewis, Charles Bush and Damarcus Powell — backstage at Dickies Arena in an unprovoked attack following the show.

“The violence included Brown and his entourage surrounding the Plaintiffs, throwing chairs at them, and repeatedly kicking, stomping, and beating them,” the complaint reads. “The unprovoked violence included multiple strikes to the Plaintiffs’ heads and chests, and ultimately involved stomping them while they were down. The brutal, violent assault participated in and directed by Brown, severely injured all Plaintiffs.”

According to the complaint, the attack occurred after the four men were invited to the backstage VIP area following the show, where they allegedly waited 30 minutes for Brown to arrive. “Having grown tired of waiting,” the complaint reads, the men began making their way to the exit, at which point Bush says he approached Brown to shake his hand and congratulate him on the concert. After exchanging pleasantries, a member of Brown’s crew then allegedly shouted to Brown, “Man, you don’t remember you two were beefing?” The lawsuit claims that Brown then replied, “Oh yeah, we were…I don’t forget sh–” before instructing his entourage to “f—” Bush up.

At that point, the plaintiffs claim that Brown, along with “seven to ten members” of his crew, followed them into a hallway as they were attempting to leave and attacked them. “One of Brown’s entourage, known by the alias Sinko, ran to the left side of the crowd and punched Bush in the chest,” the complaint reads. “Simultaneously, another of Brown’s entourage, stage alias Hood Boss, picked up a chair and threw it at Bush’s head.”

The complaint says that Parker was also badly beaten after Brown allegedly instructed another member of his entourage, Markies Deandre Conway (a.k.a. Yella Beezy), and several others to “f—” him up. After fleeing into a stairwell, the lawsuit claims Parker became trapped by a locked door at the bottom of the stairs, where he was subsequently attacked by Brown and several other men.

“Upon instruction by Brown, Parker was then punched in the face and chest, kicked in the head for over ten minutes, and stomped on by Defendant Brown and his associates,” the complaint alleges. “Brown encouraged his companions to join in the assault simultaneously. Brown and his entourage then continued to beat Plaintiff Parker closed fisted for almost minutes, repeatedly stomping on Defendant Parker’s head, kicking his face and ribs, and causing severe bodily injury.”

Brown and his crew are also accused of punching Powell in the shoulder and punching Lewis in the shoulder and chest.

The complaint claims that all four men required medical treatment and that Parker was hospitalized and “will need to undergo extensive medical treatment for the damages he suffered in the attack, including head injuries.”

In addition to Brown, the lawsuit names three members of his entourage — Conway, Hood Boss (a.k.a. Omololu Omari Akinlolu) and Sinko Ceej — as defendants. As for Live Nation, the complaint alleges that the concert promoter continued working with Brown despite his history of “bad conduct and violent conduct.” According to the lawsuit, the company “shamelessly profits and promotes Brown’s The 11:11 Tour and brought Brown to Texas for financial gain. Live Nation failed to insure that the [participants] of the concert who may be around Brown, and his associates, were safe.”

The plaintiffs are asking for compensatory and punitive damages “in excess [of] $50 million,” along with actual damages for “pecuniary losses, pain and suffering, disfigurement, mental anguish, and past, present, and future medical expenses,” among other relief.

In making its case, the plaintiffs’ attorneys make note of several of the defendants’ criminal histories, alleging that Ceej was a member of “the blood gang” and spent “at least eight years in prison” and that Conway, “a former Crip gang member,” has been arrested multiple times for firearm possession and sexual assault.

The lawsuit additionally recounts Brown’s well-publicized brushes with the law, including the singer’s guilty plea for beating his then-girlfriend Rihanna in 2009, for which he was sentenced to five years’ probation and community service and forced to undergo domestic violence counseling. Brown has been arrested and/or sued multiple times for various instances of alleged physical and sexual assault, including by multiple women and his former manager, Michael Guirguis. In 2014, Brown pleaded guilty to simple assault for punching a man in the face the previous year.

Representatives for Brown, Live Nation and Conway did not immediately respond to Billboard‘s requests for comment. Representatives for Akinlolu and Ceej could not be located for comment.