In February 2002, Netrebko made her debut with the Metropolitan Opera company as Natasha in the Met premiere of Prokofiev's "War and Peace", and performed as Giulietta in "I Capuleti e i Montecchi" at the Opera Company of Philadelphia. In August 2002, she performed Donna Anna in "Don Giovanni" conducted by Nikolaus Harnoncourt at the Salzburg Festival, which prompted her to international fame, and where she returned in consecutive editions for "Don Giovanni", "War and Peace", "I Capuleti e i Montecchi". In September 2002, she returned to the Royal Opera, London for Servilia in "La clemenza di Tito", and in November, to the Washington National Opera for Ilia in "Idomeneo". In 2003, she debuted at the Vienna State Opera and Bavarian State Opera, both in the role of Violetta. Following "Don Giovanni" in Salzburg, she was featured in Covent Garden's production of the same opera, which opened the 2003/04 season, and then portrayed the title role in "Lucia di Lammermoor" at the Los Angeles Opera.