MY TWO BRAINS—Tonight's fun-tastic concert requires a "two-brain" approach: Use Brain #1 (smart brain) to enjoy the intelligent soulful pop of the wildly underrated Robyn, and use Brain #2 (dumb brain) to enjoy the hilariously simplistic but undeniably hooky songs of professional fun gal Katy Perry. WSH
w/Rye Rye, DJ Skeet Skeet; Rose Garden, 1 Winning Way, 7:30 pm, $25-45, all ages

—The eighth incarnation of PDX Pop Now! turns up at a brand-new location. It's still in the Southeast industrial neighborhood, and it's still all local, all ages, and all FREE, so don't miss Portland's best summertime party with 44 rad local bands. SS
Refuge, 116 SE Yamhill, Fri-Sun, FREE, all ages,

UPDATE!: Robyn is sick and cancelled tonight's performance. Leave your smart brain at home.