Kate Middleton and Prince William's children Prince George, Princess Charlotte, and Prince Louis, were among the many people in the UK who participated in the viral "clap for the UK's National Health Service videos" paying tribute to NHS workers treating coronavirus victims. "To all the doctors, nurses, carers, GPs, pharmacists, volunteers and other NHS staff working tirelessly to help those affected by #COVID19: thank you," Kensington Palace's Instagram captioned the video. "#ClapForOurCarers #ClapForCarers #ThankYouNHS #ClapForNHS"But fans couldn't help but notice a curious detail about Charlotte and Louis's outfits: Their parents had worn the exact same things before.