Ill-advised tweet comes just days after he dubbed bulimia "intelligent"

Professor Green has sparked outrage on Twitter after he called Twilight Saga actress Kristen Stewart a “slutbag”.

On Tuesday (July 24), reports started to circulate that Stewart had cheated on Pattinson – her co-star in the Twilight movies and boyfriend of over two years – with film director Rupert Sanders. The pair met when Stewart was shooting her recent film Snow White And The Huntsman, which Sanders directed.

Stewart later confirmed the rumours by issuing a public apology in US celebrity magazine People.

Wading in on the affair and seemingly so outraged by the affair he was unable to spell the actress’s name correctly, Professor Green tweeted yesterday: “Being a cheating sl*tbag aside I actually feel sorry for Kirsten Stewart, she may as well have cheated on Justin Bieber. #careersuicide”.

The comment came just one day after the Green provoked consternation on Twitter by saying that bulimia was “quite an intelligent eating disorder”. He wrote to his 1.2 million followers: “It would be easier just to chew food and spit it out but still you get to eat whatever you want and stay skinny.”

After the initial backlash against his comments, he tried to defend himself, writing that he was trying not to put on weight while on holiday in the US: “I’m over they heads like a bulimic on a sea-saw [sic]” he tweeted, adding: “Queue all the people who start telling me how insensitive I am and how bulimia jokes aren’t funny yadda yadda yadda.”

Media interest in the Stewart and Pattinson tryst has been so intense, it prompted Lady Gaga to share her thoughts on press ethics with her 27,540, 017 Twitter followers. She wrote: “Geez this kirstew rob stuff is brutal. Makes me sad the way press acts. Hope they’re ok.”