Jonas Brothers sign?

Alright i've posted this question before but i need more answers. So i'm going to a JB concert in a few days (July 22nd) and i'm trying to think of a hilarious sign to make. Then my friend suggested putting on a sign "Hey JB did YOU put on clean underwear this morning?" The reason for this is because my dad likes to embar me and i just laugh about it because everyone knows him as the dad who likes to try to ambar me and i will admit he can be quite funny. So every morning he yells out the window of the car infront of my teachers "Stacey, did you put on clean underwear this morning?!" Everyone thinks its histarical. And we know that JB notices funny signs but i wasn't sure if people would think it was weird...like perverted. Everyone we have suggested it to thinks its funny but they all know the story behind it. So if you saw this sign would you laugh? or what? If you dont like this then could you make up something hilarious that no one would have used already? let me know.