Hislop addresses Leveson Inquiry
Private Eye editor Ian Hislop will give evidence to the Leveson Inquiry into press standards.
Mr Hislop, who has been at the helm of the fortnightly satirical magazine for 25 years, has also been a long-running panellist on BBC current affairs quiz Have I Got News For You.
Other witnesses due to address the hearing include Guardian editor Alan Rusbridger, Times editor James Harding and Sunday Times editor John Witherow.
Tom Mockridge, who succeeded Rebekah Brooks as News International chief executive after the phone hacking scandal broke last year, will also give evidence.
On Monday the editors of the Daily Mirror and the Sunday Mirror conceded that phone hacking might have occurred at their newspapers too.
Richard Wallace, who has edited the Daily Mirror since 2004, said the practice may have taken place in the newsroom without his knowledge. And Sunday Mirror editor Tina Weaver told the hearing she was not aware of phone hacking at her newspaper but there was no guarantee that it had not occurred.
But Sly Bailey, the chief executive of Trinity Mirror, which runs five national titles and more than 140 regional newspapers, said she was unaware of hacking at any of her papers and that she promoted ethics as a "general source of business".
Prime Minister David Cameron set up the Leveson Inquiry last July in response to revelations that the News of the World commissioned a private detective to hack murdered schoolgirl Milly Dowler's phone after she disappeared in 2002.
The first part of the inquiry, sitting at the Royal Courts of Justice in London, is looking at the culture, practices and ethics of the press in general and is due to produce a report by September.
The second part, examining the extent of unlawful activities by journalists, will not begin until detectives have completed their investigation into alleged phone hacking and corrupt payments to police, and any prosecutions have been concluded.