Royal Children and Katy Perry Shine at King's Coronation Concert

Princess Charlotte was spotted singing along to Katy Perry's "Roar" at the Coronation Concert at Windsor Castle, while her mother, Kate Middleton, nodded along and waved a flag. Fans took note of the sweet moment and tweeted about it. Katy Perry performed in a dramatic gold dress and said she was happy to be performing in support of the British Asian Trust. The entire royal family was out in force to enjoy the concert, with the exception of Princess Charlotte's little brother, Prince Louis.