Tegan and Sara with Stars 8 p.m. Sunday, April 14 Rialto Theatre318 E. Congress St. The show is sold out. 740-1000; rialtotheatre.com Tegan and Sara, Canada’s indie-rock twin sisters, will make their second stop in Tucson after coming to the Old Pueblo in 2007. The pair’s latest record, Heartthrob, moves away from the largely acoustic, […]