Rihanna and Rita Ora are reportedly feuding after the former sabotaged the latter's career.

According to The Sun, Rihanna used her close relationship with Jay Z to help boost her music career for the past couple of years. The "Stay" singer also influenced Jay Z to sabotage Ora's career because the two never liked each other.

"Rihanna has never liked Rita and has been using her power at Roc Nation accordingly. This is the main reason the label's execs have been uninterested in putting effort into promoting Rita. Songs that might be submitted to her are automatically given to Rihanna, who may then hold them for months before deciding she doesn't want them," a source said.

Meanwhile, the insider also revealed that Ora's ex-boyfriend Calvin Harris wrote some songs for the "Fifty Shades of Grey" star but took them all back when they broke up.

"The fact that Rihanna's ex Calvin Harris is on their management books hasn't helped either. He is one of their highest earners, and they did nothing to stop him when he blocked Rita from using songs that he had written on her album," the source shared.

Ora first signed with Jay Z's label Roc Nation back in 2008. However, she has only released one album.

During a recent interview, Ora described her relationship with the label and called it "irrevocably damaged."

"The fact that Rihanna is the reason behind Rita's anger is hardly surprising. They have a long-running rivalry which I have tracked from day one. Back in May I revealed how RiRi had banned Rita from her Met Gala after-party at New York club Up & Down," the publication claimed.

According to Design & Trend, none of these claims have been confirmed by Rihanna, Ora or Harris.