This book is super adorable. It's about being a fan, and having no chill, but also the classic Cinderella story. I personally love text/email/chat sequences in books, and this one involves our two protagonists chatting with each other, while not knowing who the other is. It also has an element of the "You've Got Mail" trope that I also enjoy.

This book would also work well for advanced middle grade readers, as it's a YA title without too much in the way of language, violence, or sexual activity.