Juan Diego Flórez was born in Lima on January 13, 1973. He is the son of singer and guitarist Rubén Flórez Peruvian folk music, accompanying the famous singer Chabuca Granda and Mary Teresa Salom.

While in the fourth year of secondary school he met music teacher Genaro Chumpitazi Guerero, who gave him his first lessons in voice and did impost solo singing school in school competitions and presentations Zarzuelas with his classmates and made enter the National Conservatory of Music (Lima) in early 1990.

His voice, almost raised to the opera, emerged in the course of his studies with Maestro Andrés Santa María. During this time, was a member of the National Choir of Peru and sang as a soloist in the Coronation Mass of Mozart and the Petite Messe Solennelle by Gioacchino Rossini.

He entered the Curtis Institute in Philadelphia, USA, where he studied between 1993 and 1996, and began singing in student opera productions in the repertoire for which he is known today, Rossini and bel canto operas of Vincenzo Bellini and Gaetano Donizetti. He also studied with Marilyn Horne at the Santa Barbara Academy Summer School in California. In 1994, the Peruvian tenor also, Ernesto Palacio invited him to Italy, to participate in a recording of the opera by Vicente Martin y Soler, Il Tutore Burlato, and subsequently became Flórez's teacher and mentor.

The first great sensation that reached Flórez in his professional debut with the Rossini Festival took place in Pesaro in 1996. At 23, initially he was to participate in a minor role in Ricciardo e Zoraide and the chorus of others, but left the ranks of the chorus to make the replacement of the main tenor role in Matilde de Shabran Corradino, as the principal tenor, Bruce Ford, was ill. His presentation was a sensation and then once again in similar circumstances replacing Giuseppe Sabbatini. That same year he made his debut at the Teatro La Scala in Milan as the Cavaliere danese in Armide by Christoph Willibald Gluck. Then followed his debut at the Royal Opera House, Covent Garden in 1997 where he sang the role of Count Potoski in a concert version (and the first modern) of Donizetti's Elisabetta. His debut in the Vienna State Opera in 2000 as Rinuccio in Gianni Schicchi was followed by the Metropolitan Opera in 2002 as Count Almaviva in The Barber of Seville.

He has been awarded the Abbiati Prize 2000 (given by the Italian critics the best singer of the year), the Rossini d'oro, the Bellini d'Oro, Aureliano Pertile Prize, Nobel Prize Tamagno and L'Opera award (Migliore Tenore) for his performance in 2001 of La Sonnambula at La Scala.

Signed by Decca in 2001 and has ever since released four CDs of solo recitals in the Decca label: Rossini Arias which won the Cannes.
Classical Award 2003, A Furtive Tear, won the Cannes Classical Award 2004, Great Tenor Arias (2005) and Latin Feeling (2006), a recital with classic themes of American popular music. The CDs have been found positive reviews that praise their technique. The most common entertainment is singing about his total individual characterization of each role he takes. Alfredo Kraus admires.

In October 2003, Pavarotti said the Peruvian Juan Diego Flórez could be successor as an opera singer. Luciano Pavarotti while he mentioned as his successor, both critics and the same Florez has stated that, while Pavarotti was a tenor, Flórez is opera-light, so their repertoires differ.

In July 2005 he participated in 8 Live mega concerts in Berlin, the only Peruvian to participate in this mega event. On June 2, 2007 Flórez sang with singer Gianmarco Zignago also popular in Lima Peru.
On June 3, President Alan Garcia Perez honored him with the Order of the Sun in the Grade of Grand Cross to Juan Diego Florez, for his outstanding contribution in the world of opera. The world renowned Peruvian received the award on behalf of young people struggling to realize their dreams, believe in themselves and think they can achieve in a country like Peru.

On March 30, 2008 Rigoletto Opera debut at the Teatro Municipal of Callao. Flórez played the Duke of Mantua, one of the most iconic roles in the operatic repertoire, in which great singers as Alfredo Kraus and Carlo Bergonzi left at the time interpretations reference to the story.

On April 5, 2008 at 18:30, Juan Diego Florez married to Julia Trappe in the Cathedral of Lima, Peru. Cardinal Juan Luis Cipriani, performed the sacrament. The tenor personally chose music that would play at their wedding, where the most prized piece was the Mass in C Major by Beethoven, a subject he played in the Cathedral Basilica of Ayacucho in 1993.

On April 8, 2008, the Spanish opera singer Placido Domingo stated his admiration for the Peruvian Juan Diego Florez, who held in Madrid as "the greatest light tenor of all time." "He is the greatest tenor of all time, the highest in his class. I do not remember another who has sung this repertoire and he plays so hard," said Domingo, "when Juan Diego sings with flats and natural beef, are real, not a falsetto, real sharp, "the Spanish tenor.