The 42-year-old former Spice Girl was said to have 'found God' with the help of Reverend Nicky Gumbel - who is rumoured to be officiating her wedding ceremony to Christian Horner.
Her friend close Rvd Gumbel has connections with Pope Francis through his work in South America, The Sun have reported.
We are absolutely delighted, I'm really happy, he's gorgeous
Geri was famously denounced from the Catholic Church in the Philippines back in 1999 for advocating the use of condoms.
Rumoured to be marrying in May, the couple are in full-on wedding planning mode and Geri is pictured working out most days.
Geri and Christian revealed they were engaged to be married back in November, placing an announcement in The Times.
Speaking out for the first time since the announcement just days later, Geri admitted she was 'delighted' as she stepped out at the Sentebale Polo Cup, in Abu Dhabi.
She said: "We are absolutely delighted, I'm really happy, he's gorgeous."
The couple went public with their romance in March last year, and Halliwell has admitted she is ecstatic to be a bride-to-be.
Writing in a post on Twitter, Geri said: "Christian and I are delighted to announce that we are engaged! We're both very happy."
It's been reported the mother-of-one was seen visiting Eton-educated Reverend Gumbel at his central London church last week.
Could Geri's plans be for a London-centric wedding? Only time will tell!
A representative for Geri Halliwell has been contacted with regards her wedding.