Princess of Wales joins royals on balcony during first public appearance since cancer diagnosis

Catherine, Princess of Wales joined other royals on the balcony of Buckingham Palace for the King’s official birthday, capping her first public appearance since being diagnosed with cancer. #CNN #News Want to stay up to date on the day’s top stories? Sign up for CNN’s 5 Things newsletter, and we’ll give you the 5 biggest stories you need to know, videos people are watching, and more! Sign up here: