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, a painter. The plot revolves around themes of love, betrayal, and political intrigue, as Tosca fights to save Cavaradossi from the corrupt police chief, Baron Scarpia. The opera is known for its dramatic music and powerful arias, including Tosca's famous "Vissi d'arte." It is structured in three acts, showcasing intense emotions and moral dilemmas. Tosca remains a staple in the operatic repertoire, celebrated for its rich storytelling and emotional depth.