[2] The role of Olga in Tchaikovsky's Eugene Onegin at the Prague State Opera in 1998 was Domashenko's European debut.
She returned the next season to sing Polina in Tchaikovsky's The Queen of Spades, the title role in Bizet's Carmen, and Dorabella in Mozart's Così fan tutte.
Domashenko's performances in 1999/2000 included Puccini's Suor Angelica at the Concertgebouw in Amsterdam, Olga in Tchaikovsky's Eugene Onegin in Moscow, Prokofiev's cantata Alexander Nevsky in Athens and at the Teatro La Fenice in Venice, as well as Carmen in Cagliari and solo concerts in Greece.
In 2007 she sang in Francis Poulenc's La voix humaine and in Jules Massenet's Le portrait de Manon at the Gran Teatre del Liceu in Barcelona.
Concert performances include Rossini's Stabat Mater at the Festival de Montpellier in 2000, Janáček's Glagolitic Mass with the London Symphony Orchestra and Sir Colin Davis at the Barbican Centre in London and in New York at the Lincoln Center, Mussorgsky's Songs and Dances of Death with the New York Philharmonic conducted by Riccardo Chailly at Avery Fisher Hall in New York; Khatchaturian's "Ode of Joy" at Carnegie Hall, Verdi's Requiem in the Abbey of Saint Gall and the Vienna State Opera.