What hairstyle should I try out for a MCR concert ?

Iam going to a MCR concert this may 11 and I really need a new hairstyle for it. I have always had my hair down, in a ponytail,and sometimes pigtails but its just not good. I have very thick brown almost black looking hair and I always straighten it. Its about below my sholders. Please give me a website with some videos and how tos that might help. Thanks.