Sang Icona Pop, on last year’s “I Love It,” the dance hit co-written by Charli XCX: “You’re from the ’70s, but I’m a ’90s bitch.” Charli, though, can barely claim that. Only 20 years old, the British singer-songwriter knows the ’00s best, even if her two albums, two mixtapes, and two EPs all came out in this decade. Beyond “I Love It,” start with the gothic synth-pop of True Romance’s opener, “Nuclear Seasons,” and keep going until you’re standing in the crowd at Glasslands, cheering for her to come back and play it as an encore. Don’t worry, she will. With Little Daylight.
Fri., May 31, 8:30 p.m., 2013