Roseanne Barr has posted a bizarre new video in which she literally screams as she defends the racist tweet about Valerie Jarrett which got her show cancelled.

'I thought the b***h was white! God dammit! I thought the b***h was white! F**k! she roared in the video, posted to herYouTube page with the caption: 'Roseanne, like always, cuts through the bullsh** and gets the heart of the matter.'

The clip comes two months after Roseanne's eponymous reboot was axed when she tweeted that former Obama advisor Jarrett, who is African American, looked like the 'Muslim brotherhood & planet of the apes had a baby'.

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Roseanne Barr has posted a bizarre new video where literally screams her defense of why she posted the racist tweet about Valerie Jarrett which got her show cancelled

The 65-year-old immediately backtracked in the wake of furious backlash, claiming it was a 'joke', blaming her Ambien sleeping tablets, and claiming she didn't know Jarrett was African American but believed she was Jewish and Persian.

In a since deleted Twitter rant from May, she says she told President of Disney-ABC Television Group Ben Sherwood: 'I thought she was white, she looks like my family!'

In other tweets she wrote: 'I mistakenly thought she [Jarrett] was white' and 'I honestly thought she was Jewish and Persian'.

Barr is of Jewish descent. Jarrett was born in Iran to African-American parents and her great-grandfather was the first credited African American architect.

Barr followed through with her promise when she posted the bizarre video of her speaking about the tweet on her YouTube page on Thursday

The actress looked disheveled and increasingly agitated, smoking a cigarette and repeatedly running her hands through her hair as she was interviewed by someone off camera

'I thought the b***h was white! God dammit! I thought the b***h was white! F**k!' she roared in the video

Barr's son Jake also shared text exchanges with his mother to seemingly prove she was not racist.

'Her and her dad, I thought they were white,' Barr wrote in a text message she purportedly sent her son. She followed that up by saying: 'I would never have called a black woman an ape I'm not stupid!'

That is a lie however, with Barr having called former national security advisor Susan Rice just that in a 2014 tweet.

The third text stated: 'I thought she was Jewish of Iranian.'

Her son captioned the image by writing: 'Mom and I are too dumb for the internet lol.'

Barr tweeted that former Obama adviser Valerie Jarrett (pictured), who is African American, looked like the 'Muslim brotherhood & planet of the apes had a baby'.

Roseanne Barr posted the initial offending tweet on May 29, which she attempted to backtrack on minutes later, claiming 'Muslims r NOT a race' then apologizing

Barr, who claimed her whole life has been about fighting racism', also claimed she had been 'Ambien tweeting' when she sent the offensive tweet.

'I'm not a racist, I never was & I never will be. One stupid joke in a lifetime of fighting 4 civil rights 4 all minorities, against networks, studios, at the expense of my nervous system/family/wealth will NEVER b taken from me.'

The pharmaceutical firm which produces Ambien later hit back saying 'racism is not a known side effect of any Sanofi medication.'

Barr has faced huge backlash in the wake of her tweets, including from her former costars, who lost their jobs when ABC axed the series.

Several of her costars, including Wanda Sykes, announced they would be leaving the show over the racial slur.

In the early hours of May 30, just 24 hours after posting the racial slur, Roseanne claimed in two tweets minutes apart she believed that Jarrett was Jewish and Persian, or white

Contextual: Her son shared text messages that he and his mother purportedly exchanged in which Barr writes that she thought Jarrett was 'white' and 'Iranian,' posted eight hours after the show was cancelled

On May 30, Barr claimed she had begged Ben Sherwood, then president of the Disney-ABC Television Group, to not cancel her show and let her 'make amends'

She said that she thought Jarrett 'was white, she looks like my family!' she tweeted

The shamed star also blamed her racist rant on sleeping pill Ambien. Users have previously reported going into blackouts and performing complex actions such as driving and making food without recalling it

The network has since announced a Roseanne spinoff about the Conner family which will air in the fall without the disgraced star.

Meanwhile, Roseanne is reportedly working on her own talk show which she will host on her YouTube channel.

She's been working with her son Jake's Full Moon & High Tide studio to interview friends and family, including Barr’s boyfriend Johnny Argent, former Roseanne crew member Allan Stephan and ex campaign manager Thomas Muhammad, TMZ reported.

Thursday's YouTube clip was reportedly a preview of the show’s first episode. There is no set release date or name for the show.

Barr has apologized for her tweets, saying she didn't mean to hurt anyone and that she's regretted the tweets, even before saying in an interview she 'lost everything.'

She later stated that she would not be speaking to the media any more, but would be addressing her fans 'directly' to 'cut out any middlemen who use for clickbait/ad revenue while seeking to divide rather than unite.'

Barr followed through with her promise when she posted the bizarre video of her speaking about the tweet on her YouTube page on Thursday.

The Roseanne reboot (pictured) was cancelled after the tweet, but ABC has since announced a Roseanne spinoff about the Conner family which will air in the fall without the disgraced star

The actress looked disheveled and increasingly agitated, smoking a cigarette and repeatedly running her hands through her hair as she was interviewed by someone off camera.

'I'm trying to talk about Iran!' said a frustrated Barr. 'I'm trying to talk about Valerie Jarrett wrote the Iran deal!'

'I know,' the interviewer replied, sounding amused. 'You've told me this 300 times.'

'That's what my tweet was about!' Barr shouted in response.

'I know,' the interviewer said. 'You've explained this literally 300 times.'

Losing her temper completely, Barr screamed back: 'I thought the b***h was white! God dammit! I thought the b***h was white! F**k!'