Queen Elizabeth II's 90th birthday celebrations [1] are the gift that keeps on giving. After plenty of festivities commemorating the milestone throughout April and the exciting Royal Windsor Horse Show [2] held in her honor in May, there was a national service of thanksgiving at St. Paul's Cathedral in London for her on Friday. Prince Harry, Prince William, Duchess Kate, and Prince Philip — who happened to be celebrating his own 95th birthday — arrived in support of the queen, and they all appeared to be in good spirits. Afterwards, the group congregated at The Guildhall for a special lunch.

Kate and Harry had a particularly good time together (they're known for it [3], after all), barely containing their laughter as they posed for photographs with William before making their way inside St. Paul's. It's been a busy few weeks for the younger generation of royals lately, with Kate attending a SportsAid gala [4] and spending time at the park [5] with Will and their adorable children, and Prince Harry hosting the Invictus Games [6] in Florida. With plenty more royal events on the horizon [7], we can't wait to see what they'll do next.