The team then posted a video on Thursday that shows a call between Kate and four-year-old Leukemia patient Mila Sneddon.

Watch the heartwarming video here:

Shielding Mila - Hold Still

Mila was apart of Kate's Hold Still project, which consists of photographs taken during Britian's coronavirus lockdown. A book containing the photos will also release Friday.

The Duke and Duchess of Cambridge also posted to socials about the book, allowing followers a closer look:

While they are new to YouTube, William and Kate are no strangers to posted videos and sharing their life at home with fans and viewers. The two recently celebrated their 10-year anniversary, posting a heartfelt video to socials taken at the family's country home. They wrote:

"Thank you to everyone for the kind messages on our wedding anniversary. We are enormously grateful for the 10 years of support we have received in our lives as a family. W & C."

You can follow the couple's story by subscribing to their YouTube here.