Hair style for a Sadie's dance?

I have a school dance coming up. Unfortunately, I have a soccer tournament I'll be rushing home from in order to get to the dance on time. Anyone have any ideas for a quick hairstyle? I was thinking an updo, but feel free to share any ideas you have. My hair is naturally curly/wavy and about 2 inches below the shoulders (it does straighten). IDEAS ANYONE?!