Are Rihanna and Rita Ora at loggerheads?

London:  Pop star Rihanna reportedly thinks Rita Ora has a "lack of respect" for her after she released a track with her ex-boyfriend Chris Brown.

Rihanna, 27, is furious with the 24-year-old singer for

recording a song with Brown and has objected to the steamy

video of 'Body On Me', reported Female First.

"There's no lost love between them, but this is another

example of what Rihanna perceives to be a lack of respect by

Rita.

"Chris and Rihanna have a long history and she hit the

roof when she heard about 'Body On Me', especially the video,"

a source said.

The 'Poison' hitmaker has been trailing the clip, which

will release on August 21, teasing it is her most "intimate"

video yet.

"The video has been shot, it comes out in a week and a

half and I can't wait for you guys to see it. It's probably

one of the most intimate videos I've ever done, but it's

really exciting," Ora had tweeted.