Rihanna plants kiss on Rita Ora's cheek British singer Rita Ora, who's often compared to Rihanna, posted this Twitter picture of t...

Rihanna plants kiss on Rita Ora's cheek

British singer Rita Ora, who's often compared to Rihanna, posted this Twitter picture of the Umbrella singer giving her a kiss on the cheek at Jay-Z's party

As Rihanna showed off her new tiara and matching body harness last night, as her butler followed with booze, the pop star sparked more fears that she's been burning the candle on both ends

Rihanna enjoys a night at Boujis in London last night, completely covered up

The 24-year-old popstar stepped out of her hotel in a tiara with a matching intimate body harness under her suit, which framed her perky assets

Rihanna isn't exactly shy of courting a little controversial attention.

And it seems setting her sights on flavour of the month Rita Ora has incited a little girl crush in her.

The Rude Boy singer was seen grabbing the British star to plant a generous smooch on the cheek at the birthday party for Roc Nation executive Tyran 'Ty-Ty' Smith.

As Rihanna lunged in, she clutched Rita's face as both girls closed their eyes in the moment.

The Hot Right Now star tweeted the photo following the London soiree after checking out Kanye West and Jay-Z in concert, accompanied with the caption: '@rihanna hatin a$$ biatch!!!! Mwah!!!!!!'

Also at the party at the DSTRKT club in Piccadilly on Saturday night was Gwyneth Paltrow, Stella McCartney, Kanye West, Kim Kardashian, Rob Kardashian and Dianna Agron.