Holly Hagan wants Kerry Katona to apologise for calling Charlotte Crosby a "cross-eyed fish".

Holly Hagan

Holly Hagan

The 'Geordie Shore' star has spoken out in defence of her former cast mate after the former Atomic Kitten singer urged Charlotte to "stop messing with her face" and said her face looks like it "got stuck between two lift dooes".

Holly tweeted: "What the hell is this!!? You are a mother to daughters!!!

"How would you feel if someone said this about your @KerryKatona7 I think you need to apologise. (sic)"

The reality star was responding to Kerry's recent new! column regarding Charlotte's own comments about her lips on the Australian version of 'I'm A Celebrity... Get Me Out Of Here!'.

Kerry wrote: "Charlotte Crosby, currently appearing on the Australian 'I'm A Celeb', said her lips look like a 'baboon's arse' - she's not wrong.

"Charlotte's great entertainment, but I wish she'd stop messing with her face as it looks fragile. She's obviously got hang-ups about her appearance and that's sad, but please stop!

"Her face looks like it's got stuck between two lift doors - she looks a bit like a cross-eyed fish.

"I'm not trying to be mean - she knows what she looks like and she owns it - but she looked so much better before her surgery. Maybe therapy is the answer instead of more procedures."

Charlotte had opened up to her campmates about her looks and admitted cruel online trolls have compared her to Michael Jackson because of the cosmetic surgery she's had.

She said: "I went on the red carpet, I honestly felt like I looked a million dollars.

"I had this lovely dress made, my hair and make-up was all done and I looked in the mirror and I was like, 'God, I think I actually feel like I fit in.'

"I uploaded a photo the next day and just men were going in on us, like, 'Ugh Pete Burns, blah blah blah, disgusting, Michael Jackson'. I get called Michael Jackson all the time. People are just ruthless."