Many of the greatest opera stars of the era appeared with the company during its four year history; among the most notable were Nellie Melba, Lillian Nordica, Luisa Tetrazzini, Ernestine Schumann-Heink, Giovanni Zenatello, Lina Cavalieri, Mary Garden, John McCormack, Lalla Miranda, Alessandro Bonci, Charles Dalmorès, Giovanni Polese, Maurice Renard, Alice Zeppilli, and Nicola Zerola.
Luisa Tetrazzini | Luisa Gallegos | Luisa Miller | Maria Luisa of Spain | Maria Luisa of Parma | Luisa Sigea de Velasco | Maria Luisa of Spain, Duchess of Lucca | Maria Luisa Figueira | María Luisa Bemberg | Luisa Sanfelice | Luisa Moreno | Luisa Fernanda | Infanta Luisa Fernanda, Duchess of Montpensier | Anna Maria Luisa de' Medici | Maria Luisa Spaziani | María Luisa Pacheco | Maria Luisa Pacheco | Maria Luisa of Savoy | Luisa Vehil | Luisa Sanfelice (film) | Luisa Isabel Álvarez de Toledo, 21st Duchess of Medina Sidonia | Luisa Isabel Álvarez de Toledo | Luísa Beirão | Anna Maria Luisa in ''Portrait of Anna Maria Luisa de' Medici with flowers'' by Antonio Franchi | Anna Maria Luisa de' Medici, Electress Palatine of the Rhine |
She toured Australia with Dame Nellie Melba, and was associated on stage with other singers such as Luisa Tetrazzini, Amelita Galli-Curci and John McCormack, and violinists such as Mischa Elman, Eugène Ysaÿe and others.
Kahn accompanied some of the great musicians of the day, including violinists Mischa Elman and Fritz Kreisler; sopranos Dame Nellie Melba, Luisa Tetrazzini, Florence Austral and Oda Slobodskaya, tenors Enrico Caruso, John McCormack, Richard Tauber, Joseph Hislop and Beniamino Gigli; and baritones Titta Ruffo and John Brownlee.