I tried on my phone but the YouTube feed was several seconds behind the speakers so you'd need headphones.
Maybe that's why they dont suggest it any more ...
Its quite an undertaking (even before the TRAs turn up) to get to these different cities, with equipment and set it all up.
Maybe that other well know woman who also goes by 3 letters could donate the money for some astonishing loud speaker system, so not only could all attending hear, but blast out the silly rainbow ditties.