There are at least three indisputable reasons to not miss this show. First, Team Dresch, the legendary riot grrrl powerhouse, whose Personal Best is an eternal classic of the era and whose few-and-far-between live shows are ferocious. Second, the supplementary entertainments provided by inspired power-poppers Pony Time, Your Heart Breaks, and DJ Cherry Canoe. Third, the whole thing is a benefit for marriage equality in Washington State. Go, go, GO. (Chop Suey, 1325 E Madison St, www.chopsuey.com, 8 pm, $10, 21+)