What are some musicals with country or southern music in them?

My school is going to be doing the musical The Spitfire Grill, and I need to find an audition song from a musical that has been on Broadway. I really don't know that many musicals, though, and none of the ones I know have music that's very similar the sort-of country-like music in this one. However, I don't want to use a song from a common musical like Annie Get Your Gun. Any song/musical suggestions would really help! :)