Joan Jett and Sonny Moore
I could be wrong, but when Shiloh is singing 17, isn't Joan Jett playing guitar in the background during part of the song?
Also, in the very long list of musicians for the movie, it lists a "Sonny Moore" as one of the many guitar players they used for the music. Does anyone know if its the same Sonny Moore who was the front man for From First To Last for a while? Normally I wouldn't even think twice about it, but in an interview from Comic Con, Terrance's partner in this (he was either a writer or producer I believe) said that they had a lot of people in the music biz wanting to do something with the movie.
"Surely, I do imbibe in copious herbage, but I don't drink alcohol..."