**FILE**Dawn Upshaw as Gretel rehearses Engelbert Humperdinck's "Hansel und Gretel" on Dec. 17, 2001, at the Metropolitan Opera in New York's Lincoln Center. Upshaw began treatment for early-stage breast cancer Thursday, Nov. 16, 2005, canceling her engagements through January 2007, her manager said. (AP Photo/Chad Rachman)