You've got to hand it to a band that gets 650 college students to scream lyrics that include the word ''benign."
But then, Chicago pop-rock quartet OK Go had pretty much everyone singing along during its exuberant hour-plus Paradise set, which included the arch breakup song ''Don't Ask Me." Nuggets like that one, from their 2002 debut, were particular favorites of the capacity crowd. Fans cheered from the first guitar riff of strutting modern rocker ''Get Over It," and the jaunty pop of ''The Fix Is In," with its line, ''When we got to Boston, we knew we'd missed a turn."
Such an enthusiastic audience makes it a mystery why OK Go hasn't broken out like that other brainy band, Weezer. But perhaps this tour is the start of bigger things. They certainly appear ready, with their dandyish suits and their campy classic rock stage moves. Singer-guitarist Damian Kulash worked the crowd, and the band delivered, from its rocked-out take on the Talking Heads' ''Stay Up Late," through songs from their ambitious 2005 album, ''Oh No." The guitars and vocals during the smart social critique ''Television, Television" had a tough punk snarl, while ''Oh Lately It's So Quiet" was a sultry R&B lament delivered as rock rave up.
Even when things teetered toward preciousness during the encore, when they performed the choreographed dance from their ''A Million Ways" video, it was all cleverly imagined and delivered with such fun.
Show openers Tally Hall, from Michigan, came off like an amateur Barenaked Ladies but earned laughs. Toronto-based Controller.Controller delivered a sultry set of soulful dance rock.