She previously refused to take part in Celebrity Big Brother, claiming not even £1million would be enough to persuade her to sign up.
But her firm stance against the show has since been swayed, as Ann Widdecombe became the first housemate to enter the famous compound for its first all-female series for and appearance of fee just £100,000.
The former MP, 70, branded the Channel 5 reality series as 'vulgar' and 'voyeuristic', and claimed she has only accepted to feature on Celebrity Big Brother this time round because of it's focus on women.
Scroll down for video
'I wouldn't do it for a million pounds!' Ann Widdecombe said of Celebrity Big Brother before accepting 100k to be part of the show's new female focus
Her appearance comes after Ann hit out at the show back in 2011 and claimed she had refused to sign up for Celebrity Big Brother on multiple occasions, insisting she 'wouldn't do it for a million pounds' in her outburst.
Ann has previously said: 'There is no point to Big Brother at all.'
Seeming to have had a change of heart, however, Ann has joined the likes of Ex On The Beach star Jess Impiazzi, Keeping Up With The Kardashians star Malika Haqq and Boris Johnson's sister Rachel on the series.
In a show first, Celebrity Big Brother has kicked off with an all-female cast, with its male housemates joining several days later. The change is a salute to a centenary of women’s suffrage and will initially explore how the women interact, from politicians to performing artists.
Grievances: 'My objections are straightforward. It is entirely voyeuristic, and Jean-Paul Sartre was quite right when he said hell was other people,' the ex-Conservative Party member said
Having reservations: Ann has also previously said that 'There is no point to Big Brother at all.'
Insisting it was the empowering women theme that led to her finally stepping foot into the Celebrity Big Brother house, Ann discussed her decision to join the show with CBB host Emma Willis on Tuesday night's live launch.
She said: 'It is very specifically for the theme – I have always said no in the past and I was saying no this year and they said 'well look it is different, it's slightly more serious.'
'It's about women's liberation. And so I eventually said, "Yes, OK."'
When asked by