The Pitch Perfect star said the celebrity now avoids her.

Australian actress Rebel Wilson is making waves with her new memoir, Rebel Rising. Last week, it emerged that in the book, Wilson named and humiliated actor Sacha Baron Cohen as a “giant a-hole” to work with.

Now, in an excerpt obtained by Us Weekly, Wilson has claimed that the singer Adele “hates” her, describing some awkward near-encounters between the two.

Wilson said that when they were both bigger-bodied, people often mixed the two of them up.

“Some actresses would get offended if I called them plus-size in this book, so I have to be careful with what I say,” Wilson wrote.

“This is why, I think, Adele hates me.

“There was a moment when she was bigger, and some people would confuse us for one another.”

Wilson then added that she didn’t really know if Adele actually hated her.

“To be fair, I’ve never asked her,” she wrote.

Wilson said she had seen Adele at various events and had wanted to talk to her, but the singer would “always quickly” turn away.

“(It was) as if my fatness might rub off on her if I were near her for more than 30 seconds,” she wrote.

“She didn’t like being compared to (Wilson’s Pitch Perfect character) Fat Amy.”

Adele, left, and Rebel Wilson, right.

Last week, an extract from the book made waves when Wilson said she was “scared” working with Sacha Baron Cohen, who is married to Australian actress Isla Fisher.

The two comic actors appeared together in the 2016 film The Brothers Grimsby.

“It felt like every time I’d speak to SBC, he’d mention that he wanted me to go naked in a future scene,” Wilson claimed in an excerpt from the book published by People.

“I was like, ‘Ha, I don’t do nudity, Sacha’.”

Baron Cohen then allegedly summoned her to “film an additional scene” for the movie.

Wilson claimed that the Borat star then pulled his pants down and instructed her to “stick your finger up my a**”.

The Bridesmaids star said no and “compromised” by slapping him on the bottom and improvising a handful of lines so she could “get out of there”.

Baron Cohen’s lawyers have called the allegations “demonstrably false”.

“While we appreciate the importance of speaking out, these demonstrably false claims are directly contradicted by extensive detailed evidence, including contemporaneous documents, film footage, and eyewitness accounts from those present before, during and after the production of The Brothers Grimsby,” a spokesperson for Baron Cohen said.

Wilson was not backing down, however, taking to social media to declare that she would not be “threatened” by Baron Cohen’s lawyers.

“I will not be bullied or silenced with high-priced lawyers or PR crisis managers,” she wrote, adding that the actor’s lawyers had tried to stop the book from being published.

In a 2016 interview with UK Marie Claire, Wilson spoke about Baron Cohen wanting her to film a nude scene.

“You want to know that the people (behind the camera) have a certain sensibility and decency,” Wilson said at the time.

“And a lot of times in comedy, they’re not those people.”