Prince Louis, 6, pens adorable message about his ‘granny and grandpa’ at Christmas carol service— and it will melt your heart

The royals are bringing the holiday spirit.

Kate Middleton stepped out to host the fourth annual “Together at Christmas” service on Friday alongside her husband, Prince William, and their three children: sons Prince George, 11, and Prince Louis, 6, and daughter Princess Charlotte, 9.

The couple’s youngest child was photographed carrying a red piece of paper with a handwritten note about what he is thankful for.

The family stopped at the famous “Kindness Tree” outside Westminster Abbey in London to hang their messages on the branches in dedication to someone who has supported them in their lives.

In honor of the service’s theme of love and empathy, Prince Louis’ note read: “Thank you for Granny and Grandpa because they have played games with me.”

Middleton also penned a letter to the 1,600 Abbey carol goers, which includes members of the royal family, sharing with them, “This Carol Service is a heartfelt celebration of every one of you, and a reminder that at Christmas, and throughout the year, we must all shine for each other. Because in times of joy and sadness, we are all each other’s light.”