The pair have locked horns on Twitter many times.
The pair agreed the deal on Morgan's TV show.
Walker will make his debut broadcast on Channel 5 later today.
The pair have both judged 'Britain's Got Talent' but do not enjoy a friendship.
The TV star addressed the issue in a column.
The TV host spoke to a trans activist who kept their face covered and swore throughout the interview.
The Sex Pistols star shared his thoughts on the royal family.
The TV stars fell out on Twitter.
The TV presenter called the prince a 'terrible hypocrite' for 'preaching' about eco travel and using private jets.
Former GMB host Piers Morgan has launched a renewed attack on the Hollywood stars and the organisers of the 2022 Met Gala as he dubbed the event "tone-deaf".
The TV presenter said 'That's a whole new level of humiliation' for the Duchess of Sussex.
Good Morning Britain's Laura Tobin says she never got to wear any of her maternity clothes because they arrived the day before she went into early labour on the set of the ITV talk show.
Osbourne said it's "very important" to her to have returned to television.
Viewing figures for Piers Morgan's new show, 'Piers Morgan Uncensored', have dropped by a third after one night.
The former 'GMB' presenter had bragged his new show was watched by 400,000 people.
'The Good Place' star said she has posted her final tweet after the Tesla billionaire took over the social media platform.
The controversial broadcaster made his return with the launch of TalkTV.
The new channel promises controversial moments galore.
A new TV channel launches and plenty of familiar faces are back on screen this week.
Morgan interviewed Trump for his new show 'Piers Morgan Uncensored'.
Sharon Osbourne left her role on 'The Talk' after she publicly defended Piers Morgan's comments about Meghan Markle.
The broadcaster begins his new TalkTV show on Monday.
The controversial broadcaster returns with a new show on a new channel.
The presenter interviewed Trump for his new show.
Donald Trump was handed a three-page document detailing critical comments Piers Morgan had made about him.