portland oregon. they've toured extensively, but tell us playing the festival crowds can be a challenge. >> you have some of your fans there but the environment's different. >> everyone's waiting for the next band. >> so you're winning them over. brandon's like you got to win over the people that don't know who you are. >> totally. >> when you feel that environment, you feel people getting into it, then we get into it more. >> yeah. >> reporter: the open layouts allow for fans to simply stumble upon acts that quickly become favorites. >> you just get to play for massive audiences that you know you don't get to play for in your own set. >> reporter: soulful singer kiesza exploded with her monster hit "hideaway." ♪ you're just a hideaway you're just a feeling ♪ >> reporter: she's worked with some of the biggest producers and deejays on the planet, writing chart-topping hits. but it's clear her true passion is performing. >> that window between being off stage and on stage, it's like getting a shot of adrenaline.