Kerry Katona was reduced to tears as she confessed that she had "messed with her body too much" while stripping down on The Big Celebrity Detox.
The former Atomic Kitten singer has had numerous cosmetic surgeries during her career in the limelight and the mum-of-five has admitted it has led to insecurities about her body.
Kerry is joined by Love Island's Toby Aromolaran, Too Hot To Handle beauty Chloe Veitch, former MMA fighter Michael Page, Homes Under The Hammer presenter Martin Roberts in a new TV experiment on E4 where celebrities attend nude therapy and wellness classes in the extreme show.
TV personality David Potts and the late Queen's cousin Princess Olga also feature, while Megan Barton Hanson quit the show after only two days of filming.
On Wednesday's episode, Kerry and her fellow celebrities had to strip down in front of a mirror and paint their least favourite body parts
Kerry broke down as she opened up about her insecurities and offered an explanation for her thoughts.
She said: "I have so much shame. I feel swollen. I hate myself at the moment, if I'm honest.
"The one thing I hate at the minute is myself. Honest to God."
She continued: "I have messed with my body so much to try to chase something and look a certain way.
"It's almost like I'm not accepting that I'm middle-aged."
Kerry and co-star David Potts initially refused to take part in the mirror gazing exercise before both relented.
Last year, it was revealed that Kerry has made over £1million since she started flogging saucy snaps on OnlyFans and has been able to build a new life for herself and her five children.
However, she said on the show: "I am really not comfortable with my body and really unhappy with who I am.
"People will be shocked because I do OnlyFans, but to stand in a mirror and completely look at yourself..."
Since the filming of the E4 programme, Kerry has said she is "over the moon" about her recent weight loss.
She is currently touring the UK as part of a theatre production of fairytale Rapunzel, playing Mother Gothel.
Speaking last month, the TV personality credited a diet plan which saw her lose more than a stone.
She said: "I wanted to give you all an update. I have lost a stone, just over a stone, in three weeks.
"I'm in the pantomime which has massively helped as I'm on the stage performing. But I'm absolutely over the moon."
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