Roberto Alagna (; born 7 June 1963) is a French operatic tenor. He obtained French citizenship in 1981, while also retaining his previous Italian citizenship.R. Alagna, Je ne suis pas le fruit du hasard, Paris, Grasset, 2007, Chapter "Canonnier Alagna !", .
Alagna opened the 2006/07 season at La Scala on 7 December 2006 in the new production of Aida by Franco Zeffirelli. During the second performance on 10 December, Alagna, whose opening performance was considered ill-at-ease, was booed and whistled from the loggione (the least expensive seats at the very back of La Scala), and he walked off the stage. The tenor's reaction to his public criticism was denounced as immature and unprofessional by La Scala management and Zeffirelli, who said, "A professional should never behave in this way. Alagna is too sensitive, it is too easy to hurt his feelings. He does not know how to act like a true star." The role of Radames was taken over successfully for the rest of the performance by his understudy Antonello Palombi, who entered on stage wearing jeans and a black shirt.
In 2007 while at the Metropolitan Opera singing the role of Pinkerton in Madama Butterfly, Alagna replaced the indisposed tenor Rolando Villazón as Romeo in Roméo et Juliette opposite soprano Anna Netrebko for two performances in September and two performances in December. Alagna was also engaged by the Metropolitan Opera at the last minute to cover for the indisposed Marco Berti in a 16 October 2007 performance of Aida. After the performance, the audience gave him a standing ovation. Deseret Morning News, 21 October 2007, page E9, Associated Press/Verena Dobnik, "Once-booed tenor wows the Met" The 15 December performance of Roméo et Juliette starring Alagna and Netrebko was broadcast by the Met into 447 theatres worldwide in high definition and seen by about 97,000 people. "Metropolitan Opera's broadcast is a digital gift", Newport News Daily Press, 23 December 2007
In recent years, Alagna has been an advocate of restoring to prominence neglected French operas – Franco Alfano Cyrano de Bergerac, Jules Massenet Le jongleur de Notre-Dame, Lalo's Fiesque, and new works – Vladimir Cosma's Marius et Fanny and his brother David Alagna's Le dernier jour d'un condamné. He has also recorded light music with an homage album to Luis Mariano, Sicilien, and Pasión.
Alagna was scheduled to make his debut at the Bayreuth Festival on opening day, 25 July 2018, in the title role of a new production of Richard Wagner's Lohengrin. Alagna withdrew from the festival on 29 June 2018 citing failure to learn the role in time.
Alagna has worked together on several projects with his brothers Frédérico Alagna and the stage director and composer David Alagna. The three brothers recorded an album of light music, Serenades, and worked together on the younger brother David's opera based on Victor Hugo's The Last Day of a Condemned Man. Alagna has often sung Alfano's Cyrano opposite his sister-in-law Nathalie Manfrino as Roxane.
The government of France named Alagna Chevalier of the Légion d'honneur in 2008.
| 1996 | Chants sacrés | — | 19 | — | — | — | |
| 2001 | Puccini: Tosca | Angela Gheorghiu, Roberto Alagna and Ruggero Raimondi | — | 89 | — | — | — |
| 2002 | Donizetti: Lucie de Lammermoor | Natalie Dessay, Roberto Alagna, Ludovic Tézier and Evelino Pidò | — | 150 | — | — | — |
| 2003 | Bizet: Carmen | Angela Gheorghiu & Alagna | — | 59 | — | — | — |
| 2005 | Chante Luis Mariano | 14 | 4 | — | 89 | — | |
| 2006 | Tenor | 86 | 40 | — | — | — | |
| Viva Opéra! | 29 | 43 | — | — | — | ||
| 2007 | Credo – Airs sacrés | 56 | 18 | — | — | — | |
| 2008 | Sicilien | 4 | 2 | — | 71 | — | |
| 2009 | Le jongleur de Notre-Dame | — | 198 | — | — | 94 | |
| Sicilien – Live | 72 | 56 | — | — | — | ||
| 2010 | Hommage à Luis Mariano – C'est magnifique! | 53 | 27 | — | — | — | |
| Les stars du classique | — | 191 | — | — | — | ||
| 2011 | Pasión | 5 | 4 | 34 | 100 | — | |
| 2012 | Pasión Live | — | 80 | — | — | — | |
| 2013 | Robertissimo | 24 | 11 | — | — | — | |
| 2014 | Little Italy | — | 71 | — | — | — | |
| Ma vie est un opéra | 50 | 33 | — | — | — | ||
| 2016 | Malèna | Yvan Cassar, London Orchestra & Roberto Alagna | — | 47 | — | — | — |
| 2018 | Puccini in Love | Roberto Alagna / Aleksandra Kurzak | 160 | — | — | — | — |
| 2019 | Caruso 1873 | Roberto Alagna | — | 40 | — | — | — |
| 2020 | Robert Alagna: Essentials | Roberto Alagna | — | — | — | — | |
| 2020 | Le Chanteur | Roberto Alagna | — | — | — | — |
| 2003 | "Petit Papa Noël" | 91 |
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