Davina McCall was "convinced" Chantelle Houghton would be exposed on 'Celebrity Big Brother'. The 52-year-old TV presenter was adamant the 36-year-old reality star - who joined series four as a "fake celebrity" - wouldn't complete her task where she had to fool her fellow contestants, including Michael Barrymore and Pete Burns, that she was the lead singer of the fictional pop group Kandy Floss.