Lorraine and Rosie's guest this week is Paul Burrell, former butler to Diana, Princess of Wales. Paul discusses his time in the Royal household including his first meeting with a young Diana Spencer and winning over the Queen's Corgis with sausages from the staff canteen!

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The award winning author, screenwriter and journalist Jojo Moyes joins Lorraine and Rosie to chat about the "what if" moments in her life – including what it took to get published, nearly getting married at 17, and why she needed a baseball bat for her first job in London after school.

Don't forget Jojo's course, Writing Love Stories with Jojo Moyes is out now on BBC Maestro.

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Lorraine and Rosie are back with some very special episodes of What If?

This week, its a very special invite to visit the one and only Mary Berry.

Mary provides some very gooey chocolate brownies for the recording which are devoured as she recalls growing up in Bath, her early jobs selling ovens, training at the Cordon Bleu and her move into television.

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Television's favourite GP, Dr Hilary Jones joined Lorraine and Rosie to discuss his journey into TV, becoming an author and helping rock stars with their ailments!

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Comedian Judi Love joins Lorraine and Rosie to discuss her rise to famed the power of a good laugh!

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Lorraine and Rosie are joined by 14 times Paralympic Gold medalist, Sir Lee Pearson CBE. Sir Lee discusses life as a highly decorated Para equestrian, being allergic to horses, meeting Margaret Thatcher and becoming a dad.

TRIGGER WARNING: This episode contains discussion around the theme of suicide. Listener discretion is advised. If you feel this may affect you negatively, please choose another episode.

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This week Lorraine and Rosie are joined by Professor Brian Cox to discuss, black holes, gravity and pop success!

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This week's guest is British actress, Sally Dynevor who is best known for her role as Sally Metcalfe in Coronation Street. Sally discusses her long career on the Cobbles as well as the time she was diagnosed with breast cancer at the same time as her on screen character.

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Our guest this week is Hannah Graf MBE. In 2013 Hannah came out as a transgender woman and became one of the highest ranking transgender soldiers within the British Army. After meeting and marrying her husband, award-winning actor, director and writer, Jake, the couple have just welcomed their second daughter, Teddy into the world.

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As we approach Christmas who better to ask 'What If?' than singer and presenter Aled Jones. Aled discusses his early days in the Bangor Cathedral Choir and singing for Rock Royalty!

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