She is also touring, last year she was very close to Hungary, so 50%,the only reason is that her tours are not announced, so a bit unlikely, but things might change. And definitely Olivia Rodrigo is very possible.
Avril Lavigne would be a very strong booking . Catchy songs which most people know- I think she would draw a very large crowd.
I’ve not seen her touring next year so I reckon it’s unlikely