They say imitation is the sincerest form of flattery, right? Roc Nation artist Rita Ora has been accused of trying to swagger jack Rihanna, but it looks like Rihanna is taking the high road. The two ladies recently came together in London at a birthday party for Roc Nation executive Tyran “Ty-Ty” Smith following the “Watch the Throne” concert. Rita Ora shared a kiss with Rihanna and then tweeted out a photo of the encounter along with the nfollowing message: “@rihanna hatin a$$ b#####!!!! Mwah!!!!!!” BURN! Just kidding, Rita was obviously being sarcastic and was playing into the rumors that the two are involved in a cat fight behind the scenes because Jay-Z is fed up with Rihanna and now focusing his energy on Rita’s career. We also hear that Kanye West was at the birthday bash at Dstrkt nightclub along with his girlfriend Kim Kardashian, Jay-Z, Chris Martin, Gwyneth Paltrow, Stella McCartney, and Rob Kardashian. Check out a few of the paparazzi shots below: Okay, now why was Kanye trying to shield Kim Kardashian from the photogs with his jacket? Those two are loving the attention. If your wondering where Beyonce is, she is currently is Atlantic City, NJ preparing for her upcoming performances – her firsts since giving birth to Blue Ivy Carter.