However in November, Kerry confirmed she had left the band, claiming she had been kicked out after branding her bandmate Natasha Hamilton a "toxic c***".
Her band mates soon hit back though, insisting Kerry left the band of her own accord.
"She's just been juicing and doing the Skinny Revolution plan." Along with a meal plan, Skinny Revolution includes daily injections of a protein-based hormone that acts as an appetite suppressant.
Those on the diet are advised to have the jabs for two to three weeks.
She has been declared bankrupt twice before - with the first time being at the High Court in London after she failed to pay the final £82,000 of a £417,000 tax bill.
This includes royalties from her music with Atomic Kitten, her brand deals, and money she's earned from personal appearances.
In October, 2017 Kerry split from her boyfriend James English only two months after they confirmed their relationship.
Posting on Instagram, Kerry said: "I'm in a relationship with me. "Single is good when you like yourself and don't count on anyone else for your happiness!!
Kerry has been working her way back from bankruptcy with a series of money deals and photo opportunities.
In December 2016, she landed herself £50,000 for a one month stint as the fairy godmother in panto Cinderella at Lincoln’s New Theatre Royal.