The Orwells are the latest iteration of a tried-and-tested rock ’n’ roll formula: Take a group of suburban kids, make them listen to plenty of classic rock, then have them write a dozen three-chord anthems. This particular quintet hails from the Chicago suburbs, and its debut album, Remember When, dropped the same year its members graduated high school. Bands like this may not hang around for long, but you can count on that same youthful excitement again and again, particularly when it comes to live shows. Unlike a veteran act that might save its best song for the encore, the Orwells only have so many tracks with which to entice their fans. But shimmering lead guitars and a tight rhythm section, they’re garage rock at its most pure, and the half-sung, half-shouted vocals will scratch that itch until the next young band comes along. Just remember that while you keep getting older, those enthusiastic performers stay the same age. Deal with it. The Orwells perform with Skaters at 8 p.m. at the Black Cat, 1811 14th St. NW. $15. (202) 667-4490. blackcatdc.com.