I can't speak for her, but I would have made sure I knew the piece inside out so that I wouldn't have any pitch problems on stage. I don't have perfect pitch so I need to practice a piece until I have the tune "in my head" before I can sing it with confidence. Just my two cents.
She may not have been fully aware of her limitations before this. These kids are teens without a lot of training. Also it is very different singing in those conditions than singing in the classroom or the school assembly hall. I give her kudos for sticking by him and supporting him, putting herself out there for him, especially knowing how nasty Simon could be. You could see how uncomfortable they both were.
Agree but being very shy myself she had to be there for him to perform!!
Indeed. Practice does make perfect. It could easily be nerves. But if they’ve rehearsed this piece enough, she should have been able to ‘keep up’ a bit better. But they clearly have an affinity for each other and I’m sure they have sung this piece perfectly at other times.