Prince Harry and Meghan set the internet on fire with a "pre-birth" dance.

Social media platforms circulated a video posted by Meghan Markle, the Duchess of Sussex, on her "Instagram" account.

The video shows Meghan dancing with Prince Harry inside a hospital room during her pregnancy with their daughter Princess Lilibet four years ago, on the occasion of her fourth birthday.

Meghan commented on the video: "Four years ago today, this also happened. Both our children were born a week after their due date."

The video was accompanied by a series of family photos shared by Meghan in celebration of Princess Lilibet's birthday, born on June 4, 2021.

Among the photos she posted, there is a black and white picture of Meghan holding her little daughter on a boat, and another of Meghan embracing Lilibet immediately after her birth.