Rihanna and Chris Brown assault mocked by Seth MacFarlane in joke at Oscars 2013, awkward much?

Rihanna and Chris Brown have had a pretty tumultuous love life, after splitting in 2009 when Chris Brown violently assaulted Rihanna before a Grammys party.

Seth MacFarlane mocked Chris Brown and Rihanna at last night's Oscars. Copyright [Rex]And at last night's Oscars, host Seth MacFarlane mocked the assault, with a joke aimed at Rihanna and Chris Brown that just left us cringing.

As Seth MacFarlane introduced the film Django Unchained, he said: "This is the story of a man fighting to get back his woman, who's been subjected to unthinkable violence. Or as Chris Brown and Rihanna call it, a date movie."

Cringe.

Chris Brown was at Elton John's Oscars after party. Copyright [Splash]Luckily Chris and Rihanna weren't at the Oscars ceremony (although he did rock up to an after party,) because we can't even imagine their faces.

Chris and Rihanna are now back together, with RiRi saying he's changed since the assault in 2009 which left her bloodied and bruised.

It wasn't just Rihanna and Chris Brown that Seth mocked at the Oscars, though.

Charlize Theron looked less than impressed at Seth MacFarlane's mocking of her. Copyright [WENN]He sang an entire song during the ceremony about famous actresses' boobs.

[Related gallery: Oscars 2013: Best and Worst dressed]

[Related article: Charlize Theron's unimpressed at Seth MacFarlane's boobs song]

However, when he sang the line, 'Charlize Theron, we've seen your boobs,' the camera cut to Charlize in the audience looking VERY unimpressed.

But the Oscars wouldn't be the Oscars without SOMEONE making an inappropriate joke and annoying all the celebs.

Roll on next year.