What Type Of Hairstyle Should I Do?

Im going to my boyfriends show. Its my first time seeing him perform with his heavy metal band and I want to look great. I just dont know what to do with my hair. I dont know whether to just straighten it or maybe even curl it (I use my thin straightener to curl my hair)...if anyone has any good pix of hairstyles please share. I dont know exactly what to wear also...haha...I have a week to make my final decisions so any suggestions will do...thank u ladies (& gents)