Among the high-profile guests were the Duchess’s friend and tennis star Serena Williams and the singer Mariah Carey.

The Sussexes signed a multi-year Spotify deal, estimated to be worth around $20 million (£15.5million), in 2020, shortly after leaving the UK.

It followed a similarly lucrative deal with Netflix, rumoured to be worth more than £100 million.

Their son, Prince Archie, made a high-profile cameo in a “holiday special” released in December 2020, when he was coaxed into uttering his first public words and showcased a distinctly American twang and an endearing giggle.

The then 19-month-old appeared in the closing moments to follow his father’s instructions and speak into the microphone.

“Happy New Year,” he said carefully, laughing gleefully and declaring the experience “fun”, to the clear delight of his parents.

The 30-minute podcast, the first from Archewell Audio, reflected on the difficulties faced by many during the global pandemic, focusing on the positives and the connections made as a result.

They invited a host of guests, from global stars such as Sir Elton John and James Corden, to British poets Hussain Manawer and George the Poet, to record audio diaries in order to see how they would reflect when they had “a moment to themselves”.