An OK show
Quirky alt-pop band OK Go, which formed in Chicago and features a member from Elmhurst, is coming back to its old stamping grounds for a show this weekend in the city. The band has a knack for creating offbeat and catchy pop songs, but its videos may be even more noteworthy. The clips, which have spread like wildfire via the web, combine humor and inventive visuals. (Who can forget the dancing-on-treadmills video for the song "Here It Goes Again"?) OK Go has a new album, "Hungry Ghosts," coming out this fall. 9 p.m. Friday, Aug. 15, at Lincoln Hall, 2224 N. Lincoln Ave., Chicago. $22. Go to lincolnhallchicago.com.
Twista, the hip-hop artist from Chicago known for his lightning-fast rapping style, will celebrate the release of his new record, "The Dark Horse" -- it came out this week -- with a show in the suburbs. 9 p.m. Friday, Aug. 15, at HOME Bar, 1227 N. Rand Road, Arlington Heights. Tickets start at $16. Go to homebarchicago.com.
'Betty,' 20 years later
The New York band Helmet brought the weighty crunch of heavy metal to the alternative 1990s with its hit debut record, "Meantime." The follow-up, 1994's "Betty," added unusual sonic accents to the monster guitar riffs, including some jazzy grooves. "Betty" was a hit with critics, and Helmet will celebrate its 20th anniversary by performing the entire album this weekend in the city. 8:30 p.m. Saturday, Aug. 16, at Reggie's Rock Club, 2105 S. State St., Chicago. $25. Go to reggieslive.com.