Tosca is Puccini's enduring favorite, and stars an exceptional trio of singing actors in the leading roles. It will be simulcast live from the Met on Saturday, November 9, 2013 at 12:55 p.m. ET. Read our preview and synopsis at Berkshire on Stage . wp.me/pT8Qm-9hn In this clip:. Roberto Alagna sings "E lucevan le stelle" from Puccini's Tosca courtesy of the Metropolitan Opera.