Jo Whiley’s best friend spends at least four days a week with her, as Anna is Jo’s producer on her Monday-Thursday evening Radio 2 show. Here, they tell Cat and Edith how their friendship formed and what it means to them.

They first met in a car park after a party nearly 25 years ago, when Anna asked Jo to help her get a break into the world of radio. They’re now inseparable, sharing work, leisure and family time together. Find out what Anna thinks Jo’s biggest secret is, and what Jo is grateful to Anna for always taking care of.