Rihanna re-enacts Chris Brown fight in gritty new promo

Rihanna has re-enacted her notorious bust-up with ex-boyfriend Chris Brown in a shocking new promo in which she's depicted taking drugs and fighting with her lover in a car.

The Umbrella hitmaker famously split from Brown in 2009 after he attacked her in his sports car, leaving her battered and bruised.

Now she appears to have lifted the lid on the incident in the video for new single We Found Love, in which she has a furious bust-up with her rumoured real-life boyfriend Dudley O'Shaughnessy.

The gritty promo begins with the R&B star and model O'Shaughnessy - who bears a striking resemblance to Brown - glaring at each other while fully dressed in a bath.

The film goes on to chart the highs and lows of their turbulent romance as they kiss passionately and simulate sex scenes, before smoking what appears to be marijuana, popping pills and partying with a crowd of ravers in a field.

Rihanna then seemingly re-enacts her pre-Grammy Awards fight with Brown as she and O'Shaughnessy scream at each other in a car.

During the bust-up, O'Shaughnessy angrily punches the dashboard as Rihanna gets out of the vehicle and slams the door behind her.

Their shocking behaviour continues as O'Shaughnessy tattoos the word 'mine' on Rihanna's backside, while she is also seen vomiting, boozing, streaking topless and hitting her lover as their romance spirals out of control.

And Rihanna even hints how devastated she was by the fight which led to her split from Brown - a voice-over by Agyness Deyn at the beginning of the clip tells viewers, "No one will ever understand how much it hurts. You feel hopeless, like nothing can save you. Then when it's over, and it's gone, you almost wish you could have all that bad stuff back, so that you can have the good."