It's been a busy week for the royal family. On Sunday, Queen Elizabeth and Prince Philip attended church in Sandringham, marking their first outing since falling ill over the holidays. Kate and husband Prince William accompanied them.
Then on Tuesday, William visited Centrepoint, a youth hostel for homeless teens in London.
The royal couple is stepping up to the plate more since the queen retired as the patron of 25 patronages, handing off some of the workload to her grandsons William and Prince Harry in addition to Middleton.