Arcade Fire, LCD Soundsystem, and Gossip all put on spectacular live shows with overwrought theatrics, muscular disco grooves, and a punk-blues explosion, respectively. James Murphy and Beth Ditto are especially powerful, the former leading his band like a post-punk James Brown and the latter belting out songs with overwhelming soul. This should be one of the best shows of the fall. (Bank of America Arena, 3870 Montlake Blvd NE, 7:30 pm, $39.50, all ages.) ERIC GRANDY