In January, Tegan and Sara, the Canadian duo made up of identical twin sisters Tegan and Sara Quin, will release "Heartthrob," a game-changer of an album that, if all goes as planned, will catapult them from well-regarded folk act to arena-ready pop stars. But first, the sisters have to get through Christmas. Tegan, the duo's co-writer and guitarist and an all-around good sport, will spend hers with her sister and other relatives. "I'm quite excited," says Tegan, who really does sound excited. "It'll be 16 of us, all in one house."

Read the full Tegan and Sara interview

8 p.m. Friday at UIC Pavilion, 525 S. Racine Ave.; $38.50-$58.50; 800-745-3000 or ticketmaster.com