Her greatest role was Giselle. The world première of this two-act ballet was on June 28, 1841 at the Théâtre de l'Académie Royale de Musique, Paris. The ballet caused a sensation. It inspired reviewers to proclaim "Giselle" to be the greatest ballet of its time. The ballet immediately established Grisi as a star in her very first full-length ballet in Paris. Her salary grew from 5,000 francs to 12,000 in 1842 and 20,000 by 1844, with additional performance fees on top. It also marked the beginning of a change in her relationship with Jules Perrot. Grisi's last performance in the west was in Paul Taglioni's "Les Métamorphoses" (aka "Satanella", 1849).