And now for something completely different — and completely awesome. Black Fag, an “absolutely fabulous” Black Flag tribute band is performing at Church tonight. The cover band performs all the Black Flag classics with a self-professed “lisp, limp wrist, and series of choreographed dance numbers.” Um, we love absolutely everything about that — even if we’re hard-pressed to say exactly what this show will be like. Black Fag open for a bill including the Meatmen and the Boston League Of Women Wrestlers.