earlier today caught on camera enjoying the moment charlotte and george accompanied their parents the duke and duchess of cambridge to celebrations in cardiff. and up and down the country, people have been holding street parties to celebrate. one of the biggest was in windsor s long walk, where tens of thousands of revellers turned up. welcome to bbc news. a third day of celebrations for the queen s platinum jubilee is underway. in the past hour, an open air concert at buckingham palace has got underway, where prince charles will pay tribute to the queen for her enduring service. let s go live to the palace and my colleague katty kay. have joined just havejoined just in time, sam ryder hasjust wrapped up. the havejoined just in time, sam ryder has just wrapped up. the concert is fully under way, going on for about an hour now. the crowd is delighted with what they have seen. it has been an amazing show, i feel incredibly lucky to watch from here, seeing the big screens an