Her first big success was a performance at 1963 National Festival of Polish Song in Opole where she got an award for the songs "Karuzela z madonnami", "Taki pejzaż" and "Czarne anioły". Later the same year Ewa sang also at Sopot International Song Festival and was named the best artist of 1963 by Polish journalists. In 1964 she took the second place in Sopot for "Grande Valse Brillante". The artist went on to perform at Olympia in Paris, after Bruno Coquatrix's invitation, as well as at the ceremony celebrating 20th anniversary of United Nations.