And while we're talking about performances by huge numbers of ukuleles, how about this? Which again I found by accident.
George Hinchcliffe, director of the Ukulele Orchestra of Great Britain, said: “The BBC Proms are great for making music accessible, as is the ukulele, due to it being cheap and portable. Everyone can have a go.
“That is why we thought audience participation would be a great idea – that and the fact that we have always wanted to fill the whole of the Royal Albert Hall with ukulele players.”
ETA: The UOGB concert is to be held in the Royal Albert Hall in London on August 18.