CBB runner-up Katie faced an awkward confrontation with Coleen yesterday (9 February) during an appearance on Loose Women - and now their row has spilled over onto Twitter.
During her interview on the ITV1 lunchtime show, Coleen called Katie up on the hurtful comments she made about her sister Linda when she was taking part in last year's series of Celebrity Big Brother.
At the time, Katie had made digs about the size of Linda's arm - which is the result of her battle with breast cancer - and Coleen was quick to pull her up on it.
Katie did, however, stand her ground and has now taken things one stage further. Following her appearance, the outspoken mum-of-three took to Twitter and made a comment about her recent documentary on weight gain.
She said: "@NolanColeen super lovely to meet you today. You might enjoy & benefit from #MyFatStory available on iTunes." Katie then posted the link of where to download it.
Katie Hopkins (@KTHopkins) February 9, 2015
While on Loose Women, fellow panelist Janet Street Porter had defended Coleen during her confrontation with Katie. And, judging by another of her tweets, we're thinking the CBB star won't choose to return to the show any time soon.
"Many thanks to @moose-women for having me on the show. The sisterhood at its finest. #loosewomen," Katie blasted.
Following Katie and Coleen's TV spat, fans have been quick to defend both stars. In support of Coleen, one tweeted: "@NolanColeen well done on Loose Women yesterday, that woman is vile xx."
A Katie fan, however, said: "@KTHopkins I have no boobs, a fat arm and a cancer survivor and even I am not offended!"
Coleen has not responded to Katie's latest dig.