Princess Kate privately attended the English National Ballet in a surprise royal outing today. The Princess of Wales, who recently finished her course of preventative chemotherapy, took to social media with the news. Writing on social media platform X, formerly known as Twitter, Kate said: “Congratulations and thank you to @ENBallet and @Sadlers_Wells for the wonderfully powerful, moving and inspiring performance of Akram Khan’s Giselle. “Creativity at its best! C.” The “C” at the end of the post is an indication it was written directly by Catherine, Princess of Wales. The Princess of Wales pr…