BUMP AND/OR GRIND—It's Portland's newest monthly queer dance night, and tonight the booty-droppin' BMP/GRND is celebrating with a spooktacular Halloween edition! Join DJs Kasio Smashio and Rhienna as they spin your '90s hiphop/alternative dance faves, AND throw a prize-crammed Halloween costume contest! WSH
Rotture, 315 SE 3rd, 9 pm, $5 (FREE before 10 pm)

—A pair of young Swedish sisters are doing American-style folk better than we are. Johanna and Klara SÖderberg—you know 'em as First Aid Kit—are steeped in stateside influences from Gram Parsons to Bright Eyes, and their close harmonizing never fails to tingle spines. NL
w/Dylan LeBlanc; Roseland, 8 NW 6th, 8 pm, $18-20, all ages