OMSI AFTER DARK: RADIATION CITY, THE ROBINSONS & THE PSYCHEDELIC FAMILE BAND
(OMSI, 1945 SE Water) This summertime edition of OMSI After Dark has it all. A big, exciting museum of science without any snot-nosed kids running around? Check. Booze and plenty of attractive adults to mingle with? Check. Live music by Radiation City and the Robinsons' Psychedelic Famile Band? Check. Plus a special fire-themed program with fireworks, burning magnesium, fire tornadoes, and more? OH MY GOD YES CHECK CHECK CHECK. NED LANNAMANN


GRANDPARENTS, XDS, GRAPEFRUIT
(Mississippi Studios, 3939 N Mississippi) Grandparents is collecting badges and passing Portland music scene checkpoints left and right lately. Their industrious dedication and youthful excitement, as well as a tightly developing sound that's both reminiscent and refreshing, is all starting to build up to something big. Worth keeping tabs on? Yes. Grandparents' most recent release was a four-song EP from January entitled Fumes, which is jokingly said to be a reference to accidental toxic fume inhalation from an uninhabitable basement that may have helped influence their psychedelic dream-pop sound. They somehow manage to create a feeling with their music that's rough without being sloppy, sweet without being cute, and just sad enough to make you realize you're still alive. Expect new material from XDS (formerly Experimental Dental School), as they've been on hiatus since November and are in the process of recording a new EP. ROCHELLE HUNTER


TRUCULENCE, GENERAL NASTY, DEAD IN A DITCH, PSYCHOSOMATIC
(Plan B, 1305 SE 8th) Sacramento's Psychosomatic are a unique beast of a band. They play brutal, tight, greased-lightning thrash that also has an underlined punk snottiness to it. They jump from songs called "Church Burner," "Buckshot Breakfast," and "Skatan Worshipper," to ones entitled "Sexatary," "Gator's Surf Bag," and "Everybody Hates Me." One second they'll lay down a surf beat, then the next, a blast beat. Seemingly, Psychosomatic is a skate punk band that saw one too many "No Skateboarding" signs and finally snapped. Their cute NOFX- and Descendents-style angst mutated into red-hot fury, and they started listening to Slayer on 45 RPM... then tried to play even faster. ARIS WALES


FOSTER THE PEOPLE, KIMBRA, MAYER HAWTHORNE
(Edgefield, 2126 SW Halsey) As ubiquitous earworms go, Foster the People's "Pumped Up Kicks" is reasonably harmless. Unlike a lot of other viral songs, this one doesn't turn me into a homicidal mofo after two hearings. So, kudos for that. Elsewhere, Foster the People pen facile, lightweight dance pop for people not old enough to vote. Mayer Hawthorne is a creamy-toned Michigan singer who creates convincing simulacra of Motown ballads and midtempo soul charmers. New Zealand pop diva Kimbra sang her ass off on Gotye's "Somebody That I Used to Know"; you're very curious to see what she can do on her own. DAVE SEGAL