I haven't seen what is on YouTube with regard to "Happy and Glorious" (linked by grumpy above) but here it is on the BBC:
http://www.bbc.co.uk/news/uk-19018666
Like Tez, I grinned like a loon when I realised that it was not an actress but actually Elizabeth II herself being escorted by 007!
Is there some back story to the beach volleyball that I don't know. Several people have thanked the Queen for allowing them to play
Are they just general thanks because she's in charge or is there more because I don't see other sports doing it.