I caught the end of this on the radio as I drove home.
I used to think that opera singers sang in foreign which was why I couldn't understand any words. I've now come to realise that it's because they can neither sing nor learn the lyrics.
Oh boy did she murder Rule Britannia
The choir kept battling on through the chorus, but I do wish somebody had put her out of her, and our, misery and not allowed her to shriek any more noises between choruses.