POP/ROCK Dengue Fever has a strange, worlds-colliding sound that's as unlikely as the story of how the band came together: Rock musicians and brothers Ethan and Zac Holtzman discovered Cambodian immigrant Chhom Nimol while she was singing karaoke at a club in Los Angeles' so-called Little Phnom Penh neighborhood. They created what might be the first true Pacific Rim rock band, with Nimol's exotic Khmer vocals crashing over waves of California surf-guitar and psychedelic, flower-power garage rock. After a couple albums for Peter Gabriel's Real World label, they just issued their fourth disc, "Cannibal Courtship." Their live show is as fascinating and uncanny as their albums. Chicago rockers the Eternals and DJ Mike 2600 open. (9 p.m. Fri., 7th Street Entry. 18 & older. $15.) Chris Riemenschneider
Specializing in punky updates of long-buried soul and R&B nuggets, the Detroit Cobras boast one of rock's meanest-sounding women howlers, Rachel Nagy, and one leather-pants-tight rhythm section. They're taking a break from recording to tour with eyeliner-smearing, all-female Texas rock trio Girl in a Coma. (9 p.m. Fri., Varsity Theater. 18 & older. $15.) Riemenschneider
Last seen locally jamming with Lucinda Williams at the Dakota, helping her out on "Can't Let Go" -- the FM hit he penned for her "Car Wheels on a Gravel Road" album -- outstanding roots-rock songsmith Randy Weeks returns at a funkier venue catering to barflies on a budget. Originally from Windom, Minn., and long ensconced in L.A., Weeks now calls Austin, Texas, home. Country cousins the Cactus Blossoms, a surprise hit on "A Prairie Home Companion" last summer, open the show with their citybilly harmonies. (10 p.m. Fri., 331 Club. No cover.) Tom Surowicz
Retro soul man Raphael Saadiq has been gaining a following among the indie-rock crowd for his hip, forward-feeling flashbacks and for producing albums by D'Angelo, the Roots and Joss Stone. The former Tony! Toni! Toné! singer just released his fourth solo effort, "Stone Rollin'," which suggests Curtis Mayfield's guitar-loving work, the blues-rock of Chess Records and even Ike Turner. Guitarist/singer Saadiq, who was cool enough to accompany Mick Jagger on this year's Grammys, is electrifying live. (9 p.m. Sat., Cabooze, $25.) Jon Bream
After cleaning up at their hometown Austin Music Awards in March, sweat-coated Texas party band Bright Lights Social Hour is hitting the road on their way to becoming likely favorites on the jam-band festival circuit. The hippie-ish quartet pounds out a rowdy combo of hard-rocking Lone Star boogie and "Higher Ground"-style funk with hints of modern dance-rock and jazz. (9 p.m. Sat., Fine Line. 18 & older. $15.) Riemenschneider
Singer/songwriter turned Reuters political reporter Andy Sullivan is back in town briefly from Washington, D.C., and that means it's high time for a Steeplejack reunion. The band's other songwriter, Ben Connelly, recently penned the score for an indie romantic comedy, "My Movie Girl," while Sullivan recently released a rock opera about lobbyist Jack Abramoff ("King of the Hill") with his D.C. band Dirty Bomb. Nate Link and Meleck Davis round out the Steeplejack 2011 lineup, and there are lots of opening acts: Tim Casey & the Martyrz, Tremblers and Grande Machine. (8 p.m. Sat., 400 Bar, $5-$8.) Surowicz
How cool is Joe Ely? Cool enough to have been hand-picked to open for the Clash in the late '70s and later tour and record with both Bruce Springsteen and Uncle Tupelo. His early solo albums are hidden landmarks in the alt-country world, especially 1978's "Honky-Tonk Masquerade." After a couple welcome stints with his Lubbock pals the Flatlanders, he has finally cut another album on his own, "Satisfied at Last," loaded with Texana flavor, some choice covers of Billy Joe Shaver and Butch Hancock and his own new would-be anthem, "The Highway Is My Home." Paul Metsa opens. (7:30 p.m. Sun., Cedar Cultural Center. $25.) Riemenschneider
For better or worse, Grand Old Day is the nearest thing the Twin Cities has to the stage-hopping street scene of South by Southwest, except instead of a mob of indie-centric college kids in hoodies you're more liable to run into a gang of blue-haired Chico's shoppers. The lineup is all-local this year - very local in the case of St. Paul Central grads Mayda and Heiruspecs. The latter band heads up the Dixie's stage with the 4onthefloor and Dave Simonett's Dead Man Winter. Other stages offer everything from the Current flavor of Communist Daughter, Phantom Tails, Chris Koza and No Bird Sing to the 1970s-era covers of Hookers & Blow and the blue-collar rock of G.B. Leighton to the Man in Black tunes by Church of Cash. (Noon-5 p.m. Sun., Grand Av. from Dale to Lexington. $8 and 21 & older for wristbands. GrandAve.com.) Riemenschneider