The reboot of Roseanne had proven to be a huge success, pulling in 18 million viewers per episode, breaking records and being renewed for a second season after just one episode - but its success is irrelevant as the show has been cancelled due to its star's controversial comments.

Roseanne Barr has never been one for diplomacy or political correctness, but her tweets yesterday - regarding Valerie Jarrett, a former adviser to Barack Obama - have had repercussions.

Barr's distasteful tweet suggested that Jarret, who is black, was a product of the Muslim Brotherhood and Planet of the Apes. "Muslim brotherhood & planet of the apes had a baby=vj,” she tweeted, later denying that she was racist because "Muslims r NOT a race."

However, Barr deleted the tweet and later apologised, saying "I apologise to Valerie Jarrett and to all Americans. I am truly sorry for making a bad joke about her politics and her looks. I should have known better. Forgive me – my joke was in bad taste. I apologise. I am now leaving Twitter."

However, she remains on Twitter and has been tweeting fans throughout the night, blaming sleeping pill Ambien for her outburst:

ABC subsequently cancelled the show amid an outcry condemning Barr's comments, with president Channing Dungey saying that her views are "abhorrent, repugnant and inconsistent with our values, and we have decided to cancel the show."

Here's how Hollywood, her co-stars and fans reacted: