Ariana Grande has reportedly become such a diva that even her life coach could not handle it.

A source told New York Post that the life coach of the 21-year-old "Break Free" hitmaker quit his job because he could no longer deal with the singer's bad attitude.

"He just couldn't take it anymore," said the insider. "Everything people are saying about her is true."

Just days after E! presenter Giuliana Rancic claimed that Grande has diva tendencies, the former Nickelodeon star was accused of throwing some major shade at her own fans following a recent radio show visit in Manhattan.

"She did autographs and pics and was all smiles until she got into the elevator," a shocked industry insider told New York Daily News. "And as soon as the doors shut she said, 'I hope they all f-king die.'"

Before that alleged incident, the "Sam & Cat" alum was also accused of being difficult to work with and making diva demands.

The New York Post's source confirmed these allegations, saying, "She'll only be photographed from the left side, in a certain light. She's rude to her fans. She was so obsessed with her hair that she had it dyed every three days, and the big ponytail is fake."

 "She acts like a child and constantly needs people to coddle her," the source added.

On the other hand, another source close to the singer's camp told New York Post that her life coach was actually a choreographer, and that he was axed from his job unceremoniously

"It is nothing but a spiteful former employee that has been telling rumors around town for the last several months," explained the source.

In addition, Grande's "Bang Bang" collaborator Iggy Azalea also doesn't think that the singer has attitude problem.

"She was very nice to me," the 24-year-old Australian rapper told Celebuzz backstage at the iHeartRadio Music Festival Saturday night, Sept. 20. "She's a sweet, quirky girl."

"She's a fire cracker and maybe that could be misunderstood perhaps, but I think she has a very, very kind heart," added the "Fancy" hitmaker.