Festival goers across the US may soon have a cashless (and cardless) payment option when they road trip to catch their favorite acts. Lollapalooza, the annual music fest in Chicagos Grant Park, is the first big name event in the States to adopt the system. The Lolla Cashless method uses RFID-equipped wristbands to give audience members the ability to register the bracelet online and connect a credit or debit card for purchases prior to the event in early August.