Former X Factor judge and N-Dubz singer Tulisa Contostavlos has been accused of assaulting a blogger at V Festival.
Essex Police are investigating after celebrity writer Vas Morgan claimed that the 25-year-old charged towards him in a "drunken and angry state" in the backstage area of the Chelmsford event on Sunday.
A representative for Constostavlos issued a statement saying: "Tulisa strongly denies assaulting Mr Morgan; she specifically denies punching Mr Morgan in the eye.
"She has placed this matter in the hands of her lawyers for immediate and appropriate action."
A force spokeswoman confirmed that officers received the allegation of an assault on Tuesday. The attack is alleged to have taken place just after midnight.
She added: "We are making further inquiries."
Earlier this year Tulisa was arrested on suspicion of supplying class A drugs following a newspaper report about an alleged cocaine deal.
Her bail has been extended until October.
She was dropped from the X Factor and replaced by Sharon Osbourne.
In 2012 Tulisa won an apology from her ex-boyfriend after he leaked footage on to the internet of the two of them performing a sex act.
Well perhaps she should stop doing ridiculous things.
Tulisa is just an all around tragic mess, and she gets herself into all these situations.
She needs to take a few steps back and actually sort herself out.
Morgan goes on the allege that ‘Tulisa then punched me in the eye and continued hurling abusive threats which included boasts of being from the streets, knowing gangsters and being worth 10 million pounds.’
Only the female boss!!! I'm so proud of my OG Tulisa
