The line of young and younger women outside the 9:30 club twists down F Street NW Tuesday night, but it is hours before the band Dogstar will take the stage. The show sold out long ago, despite its $15 ticket price, which is on the high end for the grungy 9:30 club. What is Dogstar, you might wonder? A rock band with no albums. So far, it's received scant publicity and no radio airplay. No matter. The club is packed, and almost exclusively with women. Evan Defoe, 26, says he "counted the amount of guys. I'm one of eight." His girlfriend forced him to come. What they came to see is the bass pla...