Rebel Wilson is naming A-holes! The "Pitch Perfect" star’s memoir - "Rebel Rising" - is coming out on April 2nd. And to promote it, she took to Instagram to tease a pretty juicy chapter in which she writes extensively about a "massive asshole" she’s worked with. At first, Rebel didn’t divulge his identity. But yesterday, she dropped the A-lister A-hole’s name. And it’s "Borat" himself, Sacha Baron Cohen, who she worked with on the 2016 flop "The Brothers Grimsby." Now Sacha’s clapping back at Rebel, and is calling BS on her claims. We GOTTA know what Rebel writes about him in her book because it doesn’t sound "very niiiiiice!"

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