passport needed?

To all Backstage members who already visited the European shows (mainly the outdoor-shows):

when you go to pick-up your wristband, do you need to show some kind of I.D. like passport or driver-license? Or is your Backstage with JBJ-card enough?

I don't want to carry around too many valuables to a show and a passport is rather big and is not very comfortable when stuck in my pants..grmmbll..

Gracias for your help!