I need a creative outfit idea!?

im going to the jonas brothers concert july 11 and me and my friend always just make shirts but this year we want to do something kinda different. we still want to make our outfits like make shirts with inside jokes and stuff but we have really close seats so we want to do something that will i guess make us pop lol so we need a creative idea for our outfits that will make it different from everyone elses. like last year we saw these girls wearing like fireman gear since it was the burning up tour so idk that was creative but this time its the world tour so idk im not gonna wear a globe lol ok yeah so i need ideas!