Un dì, felice, eterea

"Un dì, felice, eterea" ("One day, happy and ethereal") is a duet from the first act of Giuseppe Verdi's opera La Traviata. It is sung by the male and female protagonists of the opera, Alfredo (a tenor) and Violetta (a soprano). The main melody of the duet, which is very famous in its own right, is also an important musical theme throughout the opera. It is also notable for being one of the songs heard in the film Pretty Woman and also at the end of The Bitter Tears of Petra von Kant.