[3][4] During a Christmas show, Valladon was noticed by Arsène Goubert, the director of the café chantant Alcazar, who offered her three hundred francs to sing there;[4] at this she began to use the stage name Thérésa.

[3] Within a month of her arrival at the Alcazar, Thérésa enjoyed great success both with the public and critics, and also later went to perform in Rome, Italy, and Saint Petersburg, Russia.

[4] From 1867 to 1869, she took a break from singing as a result of laryngitis, which made her lose her voice, but then returned with the "popular" Les canards tyroliens.

[3][4] Some of her most successful songs' choruses were sung by many people, including La gardeuse d'ours del (1863), Rien n'est sacré pour un sapeur!

She was "admired" by Alexandre Dumas, Théodore de Banville, Pauline von Metternich and Napoleon III.