Piers Morgan's biggest celebrity feuds from J.K. Rowling to Anderson Cooper

Piers Morgan's feud with "Harry Potter" author J.K. Rowling began in 2017 after Morgan appeared on "Real Time with Bill Maher" and defended Donald Trump's immigration policies and insisted that the former president had not implemented a controversial Muslim ban.

Australian comedian Jim Jefferies, who was also a guest on the show, responded to Morgan's claims by telling him to: "f--- off."

J.K. Rowling later tweeted a clip of Morgan on the show with the caption: "Yes, watching Piers Morgan being told to f--- off on live TV is *exactly* as satisfying as I'd always imagined."

To which Morgan responded: "This is why I've never read a single word of Harry Potter."

Later that week, Rowling tweeted a screenshot of a Daily Mail article previously written by Morgan titled "The 100 British celebrities who matter by Piers Morgan" where he lists Rowling and writes extensively about the importance of her novels.

"Just been sent this. Could the writer let me know who he is? I'd love to thank him," Rowling wrote in the caption.

Piers Morgan's long-lasting feud with Jeremy Clarkson is the only entry on this list that has turned physical.

The two British presenters — who were once friends — initially fell out in 2002 after Morgan, who was editor of the British tabloid the Daily Mirror at the time, published paparazzi photographs of Clarkson with a woman who wasn't his wife.

Clarkson had reportedly pleaded with Morgan to not publish the photographs to no avail.

Since then, the pair have clashed several times. Last year, during a broadcast of his TV show "Who Wants To Be A Millionaire," Clarkson shared a story about a time when he and Morgan were sat next to each other on the last commercial Concorde flight where he poured a glass of water over Morgan.

"I was on its last commercial flight they sat me next to the lavatory, or Piers Morgan as you know him," Clarkson said. "I​ poured a glass of water over his crotch, so when he got off, it looked like he'd wet himself."

And at the 2004 Press Awards, Clarkson and Morgan had a fistfight.

Throughout this list, you'll find many examples of Morgan sharing his personal thoughts on what he believes high-profile women should be doing with their bodies.

For example, in 2017, Morgan tweeted images from a recent photoshoot by model Emily Ratajkowski with the caption: "This is Emily Ratajkowski 'promoting feminism'. Somewhere, Emmeline Pankhurst just vomited."

In response, Ratajkowski tweeted: "Lol, never said my love video was a feminist statement. But now it's worth saying that telling women what to do with their bodies and sexuality is actually just classic sexism. I can have opinions about feminism and also do sexy photo shoots – okay. Thanks."

Jameela Jamil was one of the first public figures to celebrate Piers Morgan's dramatic exit from "Good Morning Britain" earlier this month.

In a tweet on the morning he left, she said: "I almost killed myself a year ago because of Piers Morgan's relentless campaign of lies and hatred against me last February," before adding that she was "glad" to still be alive today for numerous reasons including being able to watch Morgan depart "Good Morning Britain."

The pair initially clashed in February 2020 after Morgan shared personal screenshots allegedly sent to him by former "Love Island" presenter Caroline Flack who died by suicide earlier that month, where she purportedly complains about Jamil's criticism of her reality show "The Surjury."

Morgan said he felt compelled to share the messages because at the time Jamil had been leading a campaign against online bullying.

In 2018, pop group Little Mix released their fifth studio album "LM5" supported by the lead single "Strip."

In the music video for "Strip," the band posed nude with words like "ugly" and "slutty" written over their bodies, which Piers Morgan suggested was a crude attempt at selling albums.

"Here's a great idea, girls, if you want to really empower yourselves, get naked and put the word slut all over your body," Morgan said on "Good Morning Britain" after the video was released. "Why don't we stop pretending that getting your kit off is feminist empowerment?"

When Little Mix band member Jesy Nelson was asked whether she was surprised by Morgan's comments on BBC Radio 1, she said: "Of course not. He's a silly t---."

The next day on "Good Morning Britain," Morgan responded and said: "Oh Jesy you've let yourself down, love" before demanding a public apology from the band.

A few days after Piers Morgan's spat with Little Mix, singer Ariana Grande — who Little Mix had just finished supporting on tour — took aim at Morgan defending the group's decision to pose nude.

In a tweet referring to Piers's response, Grande said: "I use my talent AND my sexuality all the time because I choose to. Women can be sexual AND talented. Naked and dignified. It's our choice. And we keep fighting until people understand. I say this with all due respect but thank you, next."

But a year later, the pair seemingly put their differences to the side after bumping into each other at a London restaurant.

"Thank u for a great night @ArianaGrande x," Piers tweeted after their meeting.

Piers Morgan's feud with Ariana Grande is the only entry on this list to end amicably, and Morgan's semi-argument with Lady Gaga is the only entry to end with an apology.

In 2016, shortly after Gaga disclosed her personal difficulties with post-traumatic stress disorder, Morgan dismissed the singer's claims in a tweet. He said: "No, soldiers returning from battlefields [have PTSD]. Enough of this vain-glorious nonsense."

When Morgan was informed by fans on Twitter that Gaga's PTSD stemmed from a prior sexual assault, he pushed back and inferred that the singer was lying about the assault. "No. Lady Gaga and Madonna have both made ALLEGATIONS of rape many years after the event. No police complaint, no charges, no court case," he tweeted.

In 2020, however, Morgan apologized and said he regretted his previous comments.

"I don't think I should have been quite so dismissive of everybody," he told the Radio Times. "I've got a lot of military in my family and PTSD is obviously a real problem if you come off a battlefield but I do accept that you can have it in other forms."

Piers Morgan was tapped to launch a new talk show on CNN in 2011 following the retirement of Larry King. But after just three years, it was canceled due to poor ratings.

After his exit was confirmed by the network, Morgan gave an interview with Politico where he blamed Anderson Cooper, whose show preceded Morgan's in the broadcast order, for failing to attract viewers.

"Could I have done with a better lead-in?" Morgan said. "Yes. Anderson is a great field reporter, but does he drive big ratings at CNN, outside of a big news cycle? I don't see any evidence of it."

Later in a column written for the Hollywood Reporter, Morgan described Anderson Cooper as a "stiff in a studio." Anderson Cooper did not directly acknowledge Morgan's comments, but CNN responded calling Morgan's behavior "sad" in a statement.

"For the two-and-a-half years that AC 360 [Anderson Cooper's show] served as the lead-in to Piers Morgan's program on CNN, it always delivered a higher rating than Piers' program," the statement read.

"It is sad that Piers is trying to find a new job by misrepresenting how he performed in his old one."