READ MORE: Meghan's hairdresser opens up on what Archie and Lilibet are likeHe and Charlotte sat in between William and Kate in the front row of the royal box. The youngsters stayed up late to make a surprise appearance at the two-and-a-half-hour event. There was a patriotic display from the Cambridges, with Kate in white, Charlotte in red, and William and George in blue outfits.