The former glamour model - who is pregnant with her fifth child, her second with her stripper spouse - claimed earlier today (07.05.14) she wants a divorce from her husband of a year and has now revealed she ''caught'' him cheating on her with a friend.
She tweeted: ''Kieran is a disgusting human being doing this after I've just had a baby and still doing it till I caught them
''No human being deserves this especially being 6 months pregnant
''Worse pain in the world (sic)''
The 35-year-old star - who has children Harvey, 11, Junior, eight, and Princess, six, from previous relationships, as well as eight-month-old Jett with Kieran - also lashed out at her former friend, branding her a ''home wrecker'' and ''clone'' of herself.
She wrote: ''Jane pountney is 50 next year cloned into me with my help she is a w***e , home wrecker sl*t (sic)''.
Katie revealed her plans to divorce Kieran just a few hours ago after finding out about his alleged affair.
She wrote: ''Sorry to say me and kieran are divorcing him and my best friend jane pountney bee having a full blown sexual affair for 7 months (sic)''
The reality TV star - who only just discovered she is six months pregnant - married Kieran in January 2013, just a few months after they started dating.
Many ticket-holders couldn't get into the O2 Arena show on Tuesday night (September 19th) because they didn't bring photo ID to match their booking.
An album re-release, a new song and a documentary mark the singer's legacy this year.
The actor plays the titular hero in the forthcoming adaptation.