In 1982, Vejzović debuted at the Teatro alla Scala, as Didon in Les Troyens, conducted by Georges Prêtre and directed by Luca Ronconi. At that theatre, she also appeared in Suor Angelica (as the Zia Principessa, 1983, conducted by Gianandrea Gavazzeni), Tannhäuser (1984), Der fliegende Holländer (as Senta, 1988), and Parsifal (conducted by Riccardo Muti, 1991).
In 1982, Vejzović made her debut at the Teatro alla Scala as Didon in Les Troyens with conductor Georges Prêtre and director Luca Ronconi. At this theatre, she also appeared in Suor Angelica (as the Zia Principessa, 1983, conducted by Gianandrea Gavazzeni), Tannhäuser (1984), Der fliegende Holländer (as Senta, 1988), and Parsifal (conducted by Riccardo Muti, 1991).