The Numero Group isn't the only Chicago indie trumpeting its accomplishments this weekend; the venerated punk label Johann's Face is celebrating its 20th anniversary with a show at the Abbey Pub, 3420 W. Grace, starting at 9 p.m. Saturday, April 4, and featuring No Empathy, Not Rebecca, the Sass Dragons and Bread and Bottle. Tickets are $10 in advance and $12 at the door; call (773) 478-4408 or visit www.abbeypub.com.

Over the course of four albums, from "604" (2001) through "Velocifero" (2008), the Liverpool electronic-pop quartet Ladytron has shown considerable stylistic range and a consistently unerring ear for great hooks. They remain cult favorites, but favorites popular enough to headline two shows at Metro, 3730 N. Clark, with the Faint, Telepath and Figo starting at 8:30 p.m. Friday, April 3, and with the same bill again at 6 p.m. Saturday, April 4. Tickets are $25; call (773) 549-4140 or visit www.metrochicago.com.