Basically Nirvana without the dread, the D.C.-rooted, Seattle-bloomed Foo Fighters sound tough and ready, if a little lightweight, on their recent debut. Live, perhaps first Fighter David Grohl can make his songs signify as hard as they pound. Shudder to Think and Skiploader open at 7 p.m. at the Capitol Ballroom, 1015 Half St. SE. $12. (703) 549-7625. (MJ)