Published: 07:46 EDT, 19 September 2020 | Updated: 08:50 EDT, 19 September 2020
Adam Perry Lang, 51, opened the Barbecoa restaurant with Jamie Oliver in London in 2010 - and worked for Jeffrey Epstein between 1999 and 2003.
He is now 'fully cooperating' with the FBI investigation into allegations of sexual abuse by depraved billionaire Epstein, reported the Daily Mirror.
Attorney Arick Fudali, representing the victims, heaped pressure on Prince Andrew - who has been accused of stonewalling detectives.
Pressure has been piled on to Prince Andrew (pictured at Windsor Castle today) to speak to the FBI after a celebrity chef stepped forward to help with the investigation into Jeffrey Epstein
Adam Perry Lang (pictured in 2015), 51, opened the Barbecoa restaurant with Jamie Oliver in London in 2010 - and worked for Jeffrey Epstein between 1999 and 2003
Mr Fudali said: 'We certainly hope that this may inspire other witnesses to come forward and help shed some light on Epstein's dark scheme.'
American Mr Perry Lang catered for the Duke of York, 60, and flew with him in a private jet on two occasions - once in February 1999 and in May 2000.
Sources told the newspaper: 'Perry Lang holds information on what took place. They will get as much detail as possible that will shape any interview they may one day have with the duke.'
Mr Perry Lang (pictured in 2016) is now 'fully cooperating' with the FBI investigation into allegations of sexual abuse by depraved billionaire Epstein
Attorney Arick Fudali, representing the victims, heaped pressure on Prince Andrew (pictured last year) - who has been accused of stonewalling detectives
Mr Perry Lang, who has been described as a decent man by victims, came forward after Virginia Giuffre, 37, wrote to ask him to be the 'hero'.
His lawyer Lawrence Lustberg confirmed the chef was helping the FBI. Mr Perry Lang himself added: 'We have absolutely always been available to the attorneys representing the victims.'
Epstein, 66, killed himself while awaiting trial in a cell for underage sex trafficking last year
He previously denied being aware of any 'depraved behaviour' during his four-year term as Epstein's chef.
Epstein, 66, killed himself while awaiting trial in a cell for underage sex trafficking last year.
Last month, Virginia Giuffre claimed Prince Andrew played a 'guessing game,' with British socialite Ghislaine Maxwell about her age before comparing her to his daughters.
The accuser spoke out in a documentary series, Surviving Jeffrey Epstein, claiming she met the royal in London, describing him as an 'abuser,' and 'not the prince from the fairy tale stories you read'.
Ms Giuffre, who says she was trafficked by paedophile financier Epstein, alleges the duke had sex with her on three separate occasions, including when she was 17, still a minor under US law.
Andrew has categorically denied he has had any form of sexual contact or relationship with Ms Giuffre.
Maxwell is awaiting trial in the US after being charged with procuring teenage girls for Epstein to abuse. She denies this.
Earlier this year Prince Andrew said he was 'angry and bewildered' as he denied reports he was contacted about the Jeffrey Epstein investigation.
He said he would be 'more than happy to talk'.
MailOnline has contacted Prince Andrew for comment.