With the release of their second album since moving to Austin, the self-assured Arrow, Erika Wennerstrom's Heartless Bastards should be able to forever laugh off the asinine thought of them being musical carpetbaggers. After the triumph that was the group's 2009 album The Mountain, Cincinnati transplant Wennerstrom used her voice (which just might be the coolest instrument in rock these days) and a bit of time off from touring to exceed the lofty expectations the group's breakthrough album created. The Fling and the Cush open.