7 p.m. Tuesday, August 11. Foam Coffee and Beer, 3359 Jefferson Avenue. $5. 314-772-2100.
You don't have to dig too deep to pull out the adjective "child-like" to describe Girlpool. The drummer-less duo of Cleo Tucker and Harmony Tividad titled its debut Before the World Was Big — its title track is a paean to uncomplicated youth — and the album's cover art depicts a boy and girl making their own universe of Lego bricks. But the pair's twinned vocals and open-hearted lyrics transmit a certain twee naivete that is matched with a keen eye for site-specific details and sharp ear for big-hearted, do-it-yourself pop.
Star Power: Frankie Cosmos, the stage name of lo-fi folkie Greta Kline (daughter of St. Louis native Kevin Kline) will open the show.