The Duke and Duchess of Cambridge have teamed up with Prince Charles and Camilla to pay a sweet tribute to the Queen on International Women's Day.
Both Kate and William and Charles and Camilla's Instagram accounts came together for the first time to share a joint post where they said they were celebrating Her Majesty and her "historic 70 years of service" in her Platinum Jubilee year.
The post contains a series of special images of the Queen from the early part of her reign - including an adorable picture of Charles kissing his mother's hand.