You are going about this in the wrong way! First off, welcome the opportunity to spend time with your friends. Probably does not happen that much. Then head right over to the liquor store and purchase some chap wine or what ever floats your boat. Just make sure you are buying in quantity not as much quality. Start drinking as soon as possible in mass quantity and then you are at least prepared for the music festival. Even if you puke on your shoes, you will wake up the next day probably not knowing what the hell happened. Go out for a breakfast with lots of fat, and bread to soak up the remainder of what is left over in your stomach. Try some good old chocolate milk to line the edges of your stomach. Trust me, you won't care what music was playing! Plus your friends probably won't invite you back for another Country Music festival!
Happy Listening.
Happy Listening.