AOL: It sounds great when the entire cast plays guitar and sings 'Good Riddance (Time of Your Life).' How hard was that to nail down?
Libby: That number's really cool because there were a lot of different levels of guitar ability when we started that. Some people didn't know how to play at all, and some people had lots of experience, so for everyone to take lessons and do some amount of work on it was a very cool communal experience.