Sheila Hancock will also feature in interviews with Fern Britton
Even though his modus operandi is acknowledged to be fairly unfathomable at the best of times, few could have predicted that the Almighty would recruit a trio as unlikely as Tony Blair, Dolly Parton and Archbishop Desmond Tutu to explain the importance of faith.
The former prime minister, country music legend and Nobel peace laureate will appear on a new BBC programme in the run-up to Christmas to discuss their beliefs with Fern Britton.
Blair, who left the Anglican church to become a Catholic almost two years ago, talks about his conversion and his decision to set up a Faith Foundation to get people from different religions working together.
Parton, meanwhile, reveals how she manages to balance her religion with her famously pneumatic image. The singer, best known for her songs Jolene and I Will Always Love You, feels she has managed to disprove her Tennessee preacher grandfather's adage that "a dancing foot and a praying knee don't fit on the same leg".