In their first international trip since becoming Prince and Princess of Wales, William and Catherine will visit the US this week for an environmental prize.
The royal couple will show their support for finding ways to tackle climate change, at the second annual Earthshot Prize awards in Boston.
Billie Eilish, Annie Lennox, Ellie Goulding and Chloe x Halle are among the performers taking part.
Environmental campaigner Sir David Attenborough will also be contributing.
The awards were launched by Prince William last year and the trip to Boston will be his first big international appearance since becoming Prince of Wales.
As well as the prize ceremony on Friday, Prince William and Catherine will be on show in front of the US public, which in recent months will have seen much coverage of the Royal Family, ranging from the Queen’s funeral to the Netflix drama The Crown, to stories about Prince Harry and Meghan.
