R&B singer Trey Songz is getting some serious pressure placed on him. The woman accusing him of a physical beating last month has come forward to speak out on the attack at a news conference.

On Tuesday, victim Andrea Buera spoke publicly for the first time about Songz’s alleged attack.

Andrea — who said she’s known Trey for about 3 years — said there were others who stood and watched as Trey allegedly beat her to the point he gave her a concussion. She wants those witnesses to come forward, and she wants an apology from Trey. Bloom said an investigator allegedly hired by Trey has also gone after Andrea’s family and she wants that to stop. Bloom added they’ve not filed a civil suit but it is possible. (TMZ)

Earlier this month, Buera’s attorney Lisa Bloom revealed they had received a restraining order against Trey.

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In late February, Lisa publicly asked any potential witnesses to her client’s alleged attack from Songz to come forward.

Last month, a report surfaced about Trey Songz possibly striking a woman during the recent NBA All-Star Weekend festivities in Los Angeles.

Law enforcement sources tell us the woman filed a police report claiming Trey hit her in the face Saturday night while they were attending a Hollywood Hills party. She claims Trey got upset because she was talking to another man, and hit her during an argument. We’re told she left the party on her own to go to a hospital, and talked to police soon afterward. We’re told her injuries were minor. The case will be reviewed by the L.A. City Attorney to determine if Songz will be charged. We’ve reached out to his reps … so far, no word back. (TMZ)