You might want to get your tickets early for this raucous, five-band show at the Middle East. According to the Swaggerin' Growlers Facebook page, there are 185 confirmed guests coming to the concert. Not sure what to expect? This is how the group describes its sound: "It's kind of like taking a shot of Irish whiskey, following it with a shot of bourbon, listening to your favorite records, killing both the bottles of whiskey, then punching someone in the face."
18+. 8 p.m. $12, $10 in advance. Middle East Upstairs, 472 Mass Ave., Cambridge. 617-864-3278. mideastclub.com.