A former co-star of Ariana Grande has revealed a secret feud in a tell-all book.
Jennette McCurdy recently released her memoir, I'm Glad My Mom Died, and in it, she has detailed her dislike for Grande.
Page Six reported McCurdy's dislike for the popstar began while they were filming their Nickelodeon show, Sam & Cat, because Grande was allowed to pursue opportunities outside of the show while McCurdy was declined.
The Nickelodeon star said she was "jealous" of Grande, whose character was locked in a box during an episode of the show all so she could perform at the Billboard Music Awards while McCurdy said: "I booked two features during iCarly that I had to turn down because the iCarly team wouldn't write me out of episodes to go shoot them."