Friday night, thousands of people packed the Darien Lake Amphitheater for headliners G-Eazy, Lil Uzi Vert and TY Dolla $ign.
Among the thousands of hip-hop fans was 30-year-old Thuan Ngo, who attended the concert with her boyfriend and a couple friends.
Ngo says shortly before the concert ended, she went to the restroom alone. When she came out, she says four girls jumped her, pulled her hair and poured beer in her eyes.
She says the girls whom she didn't know then grabbed her from behind, punched her and continued punching her face. As a result of the attack, she lost a tooth.
"I was trying to spit my tooth out and as I was doing that they kept coming at my face with more and more jabs," she said. "My head is still tender."
She says she was able to get away and run to security, but the girls grabbed her hair and pulled her along the concrete in front of security.
Ngo says security didn't do anything and called the attack "mutual."
She now needs oral surgery, and a tooth implant that will cost thousands of dollars. She wants someone to be held accountable.
Both Darien Lake and Live Nation tell 7 Eyewitness News they can't comment on this ongoing investigation. The Genesee County Sheriff's Office is also investigating.
