According to my very credible west coast source, rap mogul Jay Z is positioning his hawt new artist, Rita Ora, to not only replace former Pop Princess, Rihanna, but also to take on Katy Perry for the Pop/crossover market. That’s the same thing he did with Rihanna in 2008 with her hit record “Umbrella”.

But now Jay Z has had enough of Rihanna’s bizarre online and offline antics. Her reunion with her abusive ex-boyfriend, Chris Brown, was the last straw for Jigga. He has reportedly cut all ties with the troubled singer, except professionally (he still manages her). Poor Rihanna can see the writing on the wall. And that’s why she is unraveling faster than a cheap sweater.

Read the email from my insider after the break!

Yea, I knew it. I’ll tell you my secret: I’m friends with [name withheld] she’s been telling me about … Rita Ora. And [name withheld] was telling me how BIG Rita’s album is going to be with production from The Dream, Rico Love (Monica & Brandy “All Belongs To Me”), Polow Da Don, Stargate, Ne-Yo, Drake, and basically all the writers and producers who helped make Beyonce and Rihanna the success they are.

So I was like, oh, I have got to tell Sandra Rose so she can be the first one to break it. But Jay-Z wants to market Rita to the POP world first that’s why they dropped that “Party and Bullshit” song first. It’s very Katy Perry pop record. They don’t want to “urbanize” Rita. Rita’s career will take off faster then Rihanna’s did because Rita is being marketed to the mainstream world first. Whereas it took Rihanna’s “Umbrella” for the mainstream world to recognize her. I hate to say this but, Rita is NOT black so the Perez Hiltons, MTV’s, and TMZ’s will embrace her quicker. Rihanna knew all this was coming that’s why she’s popping so hard on twitter lately.