While he doesn't get the same praise as artists like Girl Talk or Dan Deacon, punked-up folk-rocker Ted Leo is still a hell of a front man who ignites a hot dance party as rowdy as any Block Party memory. There may be more button-up shirts and glasses in the crowd than neon V-necks and cheap shades, but that doesn'ta mean his record-geek fans can't cut a rug. At a past Seattle show, when Leo closed with a killer Chumbawamba cover, there wasn't a still hip in the house. With Against Me! and Future of the Left. (Showbox at the Market, 1426 First Ave, 628-3151. 8 pm, $21 adv/$24 DOS, all ages.)