Puccini's Tosca is an opera composed by Giacomo Puccini, first performed in 1900. Set in Rome during the Napoleonic Wars, it tells the story of Floria Tosca, a passionate singer, and her lover, Mario Cavaradossi, who becomes entangled in political intrigue. The opera explores themes of love, betrayal, and sacrifice. The plot unfolds over a single day, highlighting the intense emotions and dramatic events that lead to tragic consequences. Tosca is known for its powerful arias and orchestration, making it one of the most performed operas in the classical repertoire.