Lie: The Killers' Sam's Town is, as lead singer Brandon Flowers boasts, the greatest album of the last 20 years. Truth: The same overreaching, voice-of-a-generation ambition that smothers Sam's Town is, in concert, magnified into spectacular rock 'n' roll melodrama. British Columbia's Hot Hot Heat complement the Killers—they're less self-important and easier to dance to. (WaMu Theater, 800 Occidental Ave S, 628-0888. 8 pm, $33.)