 Her international career began in 1978, at the Bayreuth Festival, where she enacted Kundry in "Parsifal", for three summers.On 9 October 1978 Vejzović made her Metropolitan Opera debut in "Tannhäuser", as Venus, opposite Jess Thomas in the name part, with James Levine conducting.In 1980 and 1981, Herbert von Karajan engaged her to appear in his Salzburg Festival "Parsifal", which was reckoned a great success.