In a letter posted on the website of their Archewell non-profit foundation, they praised supporters for their charity donations on Archie's birthday.
The book, illustrated by Christian Robinson, is out on 8 June as Meghan, the Duchess of Sussex, awaits the birth of her second child.
The concert organised by Global Citizen, an international advocacy organisation, aims to battle vaccine disinformation while calling on world leaders and corporations to take action and make donations.
Put on by Global Citizen, an international advocacy organisation, the campaign is pushing businesses to "donate dollars for doses", and for G7 governments to share excess vaccines.
Broadcasters from around the world set up position outside the historic residence west of London for the most high-profile funeral of a senior royal since that of the Queen's mother in 2002.
As young boys in 1997, the pair provided the most poignant image of their mother princess Diana's funeral as they walked, heads bowed, behind her coffin.
Statistically, young British people are least likely to be fans of the prince who died last week at the age of 99.
The Duke of Edinburgh, who died last Friday, will be buried on Saturday at Windsor Castle, west of London, with just 30 mourners, most of them close family.
Prince Philip’s death last week is not expected to change the monarch's lifetime commitment to duty, as a new chapter beckons for Britain's most famous family.
The program will be the first released by the couple's Archewell Productions, which inked a sprawling deal with streaming giant Netflix last September to produce 'impactful' films and series.
The program will be the first released by the couple's Archewell Productions, which inked a sprawling deal with streaming giant Netflix last September to produce 'impactful' films and series.
The announcement came a day after Harry became 'chief impact officer' at San Francisco life-coaching startup BetterUp as he adds to his growing portfolio of jobs since stepping away from royal duties last year.
As a member of the BetterUp team, the Duke of Sussex will champion the importance of maximizing human potential worldwide, according to chief executive Alexi Robichaux.
The British monarchy has been rocked by the couple's allegations that an unnamed royal asked how dark their child's skin would be before he was born.
More than 11 million people in Britain, and 50 million in the United States watched the couple claim that an unnamed royal had asked how dark their baby's skin would be.
The Duke of Cambridge, son of heir-to-the-throne Prince Charles, added that he had yet to speak to Harry in California since the interview first aired in the United States on Sunday.
A keenly awaited statement from Queen Elizabeth II issued Tuesday was conciliatory towards her grandson and his mixed-race spouse, after their explosive interview with US chat show host Oprah Winfrey.
Piers Morgan left his role as host of Good Morning Britain on Tuesday following a scathing attack on the Duchess of Sussex's interview with US chatshow host Oprah Winfrey.
