Illness has forced the Canadian duo Tegan and Sara to cancel shows at the Beacon Theater on Monday and Tuesday nights, a publicist for the group said.
The shows have been rescheduled for Feb. 19 and 20. Tickets to Monday’s show will be honored on the 19th, and Tuesday’s tickets will be accepted on the 20th.
Andrew Steinthal, a spokesman for Warner Brothers Records, said the indie-rock singers â€" the twin sisters Tegan and Sara Quinn â€" could not perform because Sara had contracted the flu and had lost her voice. The duo’s new album “Hearthrob,†on which they venture away from their rock roots into a lusher synth-pop sound, is slated for release on Tuesday.
