Madama Butterfly his nest." Suzuki begins quietly to weep. 17. "Un bel dì vedremo" ("One fine day we shall see"). In this, the opera's most famous aria (and one of the most popular works in the soprano repertoire), Butterfly says that, "one fine day", they will see a puff of smoke on the far horizon. Then a ship will appear and enter the harbor. She will not go down to meet him but will wait on the hill for him to come. After a long time, she will see in the far distance a man beginning the walk out of the city
Un bel dì vedremo does not believe that Pinkerton will come back, but Butterfly is optimistic. Trying to convince Suzuki of Pinkerton's loyalty, Butterfly sings of an imaginary scene in which a thread of smoke on the far horizon signals the arrival of a white ship into Nagasaki harbour, bringing her long-lost love back to her. The imagined scene culminates in a romantic reunion. The aria is noted for its lyrical beauty, and it is of particular dramatic importance as Butterfly's yearning expressed in the song is later met with tragedy. Butterfly's longed-for "beautiful day" is heralded at the end of Act 2 by