Katona confesses drink and drug binges
The I'm A Celebrity... winner told how she hit rock bottom after being dumped by the ex-Westlife singer.
"For a few hours I would forget the pain," recalled Katona. "Drugs and booze provided a mask to hide behind. I could pretend to be the old happy-go-lucky Kerry who everybody loved.
"For a few hours I did feel better. I would forget the pain. But the pressure had become so bad I just lost the plot."
The star said she spend a painful, failed week in rehab, begged McFadden to get back with her and shouted at Victoria Beckham when the friend tried to offer her help.
The 24-year-old made the revelations in an interview with People, ahead of releasing the full story in her autobiography Too Much Too Young.