JULY 29

They deliver their political-punk communiqués in Spanish, but there’s no misinterpreting the urgency of Los Crudos (pictured), the Chicago quartet that headlines tonight’s Justice for Janitors benefit. The show, sponsored by Positive Force, also features D.C.’s Sevens (featuring Mark and Bobby Sullivan), Boston’s Cheesecake, and Portland, Ore.’s Third Sex. At 7 p.m. at the S.E.I. Local 82 Union Hall, 1213 K St. NW. $5. (703) 276-9768. (Mark Jenkins)