Kate Middleton steps out with Prince William, King Charles days after Harry and Meghan’s UK move bombshell

All smiles.

Kate Middleton flashed a big smile as she stepped out with her husband, Prince William, and other members of the royal family for Sunday Service after news surfaced that Prince Harry and Meghan Markle would be moving back to the UK.

According to photos obtained by Page Six, the Princess of Wales, 44, was sitting shotgun as her husband, also 44, drove them to Crathie Kirk, a Parish church in the Scottish village of Crathie.

Their children, Prince George, 13, Princess Charlotte, 11, and Prince Louis, 8, rode together in the backseat.

King Charles III and his wife, Queen Camilla, were also photographed heading to the service on Sunday.

The monarch, 77, and Camilla, 79, sat in the backseat as a personal driver escorted them to church.

Timothy Laurence; his wife, Princess Anne; Prince Edward, Duke of Edinburgh; and his daughter, Lady Louise Windsor, also attended the service.

The royal gathering came four days after Markle, 45, and Harry, 41, revealed they would be relocating back to the UK at the end of the month for “an extended period” with their two children, Prince Archie and Princess Lilibet.

“The palace was made aware of the move,” a source confirmed to us, noting that Harry’s father, Charles, was informed last Sunday.

“I know that Charles is the reason they are moving back,” an insider told Page Six.

Archie, 7, and Lilibet, 5, are already enrolled in school in Britain.

Our source added that while Charles “looks forward” to spending more time with the Sussexes in a personal capacity, their role and status as private individuals and “non-working members” of the royal family will not change.

The Netflix stars will live in “a non-royal residence,” where they will “continue with their business enterprises.”

Page Six exclusively reported that the couple is relocating back across the pond to be closer to Charles, who is currently battling cancer — and to ensure their children build relationships with family.

Last month, Harry, Markle and their kids reunited with Charles during their visit to the UK, marking the first time the king had seen his grandchildren in four years.

However, the Sussexes had no contact with William and his wife.