[5] In an interview in the Peruvian newspaper Ojo, Flórez recounted his early days when his mother managed a pub with live music and he worked as a replacement singer whenever the main attraction called in sick.

During this time, he became a member of the Coro Nacional of Peru and sang as a soloist in Mozart's Coronation Mass and Rossini's Petite messe solennelle.

In 1994 the Peruvian tenor, Ernesto Palacio invited him to Italy to work on a recording of Vicente Martín y Soler's opera Il Tutore Burlato.

His Covent Garden debut followed in 1997 where he sang the role of Count Potoski in a world premiere concert performance of Donizetti's Elisabetta.

The Diapason magazine critic described Flórez performance as a triumph, demonstrating his exemplary discipline in accent and phrasing, excellent shading and with the natural allure of a poet.

[14][15] The singer's mastery of coloratura, typified in his Idreno (Semiramide) and Corradino (Matilde di Shabran), has been noted by multiple critics.

On June 4, 2007, he received his country's highest honor, the Knight Grand Cross in the Order of the Sun of Peru, from President Alan García.

[22] They held a religious ceremony at the Basilica Cathedral in Lima on April 5, 2008, which some of Peru's leading citizens, including President Alan García and author Mario Vargas Llosa, attended.

[23] Flórez was present at the birth of his son, Leandro, who was born in April 2011, less than an hour before his father took to the stage in Le comte Ory, broadcast live around the world from the Met.