Chris Brown slammed reports he punched a female fan in the face during a Las Vegas party on Saturday. The 26-year-old singer, who was arrested in 2009 for attacking then-girlfriend Rihanna, posted a video on social media bashing Liziane Gutierrez for making up false stories about him.

"Obviously somebody looking to get a check or start some s---. I don’t know this old looking b----. B--- is old, like dusty," Brown said in the now-deleted video (via The Shade Room).

He also shared a TMZ story from August in which Gutierrez lashed out at singer Jason Derulo because he wouldn't let her on his  party bus.

At the time, Gutierrez was upset that her friends were allowed to get on the bus but not her. After the bus drove away, she told a TMZ photographer that the singer wasn't a nice guy and made her friends cry because he was trying to force them to do things they didn't want to do.

It seems the Gutierrez's latest frustrations stem from her supposedly getting kicked out of Brown's private party at the Palms Hotel in Las Vegas. The woman claimed she was able to sneak her cell phone into the party and when she tried to take a picture of Brown, he got angry.

Gutierrez said Brown allegedly started yelling, took her phone and then punched her one time in her right eye. She said she left the party and called the police, but did not want to go to the hospital. Brown’s camp told TMZ the claims are "undeniably untrue."

A rep further told Metro that Gutierrez's claims are because of a "bruised ego."

"Whatever her motives, her statements are unequivocally untrue," the rep said. "Ms. Gutierrez was escorted out of the private after-party at the Palms Casino Resort for being disruptive and out of control. Once she was in the hallway, while waiting for Chris Brown’s security to bring out her phone, she had a total meltdown...Her claim that she had her phone in her possession inside the after party and was able to take a photo causing an altercation with Chris Brown is a complete fabrication."