Digital copies of It’s Blitz! go on sale tomorrow, but before you part with your coin, enjoy this video for “Zero,†a celebratory slice of recession chic that also happens to showcase the new, synth-centered sound of the Yeah Yeah Yeahs. Director Barney Clay has Karen O and co. take to the streets and perform on the cheap: She dances on a Taurus, the band screws around with shopping carts, and, for a light show, someone flips the overheads on and off in a bodega. Lipstick and eyeliner probably had their own lines on the budget.