"Nessun dorma " (] ; English: "None shall sleep") is an aria from the final act of Giacomo Puccini's opera "Turandot" and one of the best-known tenor arias in all opera.
 It is sung by Calaf, "il principe ignoto " (the unknown prince), who falls in love at first sight with the beautiful but cold Princess Turandot.
 However, any man who wishes to wed Turandot must first answer her three riddles; if he fails, he will be beheaded.
 In the aria, Calaf expresses his triumphant assurance that he will win the princess.
Hana Janků (25 October 1940 – 28 April 1995) was a Czech operatic soprano of international renown.
 Born in Brno, she studied with Jaroslav Kvapil in her home city before making her professional opera début at the Brno Opera in Vítězslav Novák's "Lucerna".
 She became a principal singer at the Opéra national du Rhin and the Deutsche Oper am Rhein.
 She made her La Scala début in 1967 and at the Deutsche Oper Berlin in 1970.
 She also worked as a guest artist with several other major opera houses, including the Vienna State Opera, the Hamburg State Opera, and the Teatro Colón.
 She was particularly admired for her portrayal of the title role in Giacomo Puccini's "Turandot".
 She died in Vienna.
"Torna ai felici dì" (Return to the happy days) is an aria from Act 2 of the 1884 opera, "Le Villi" by Giacomo Puccini.
 It is sung by Roberto (tenor).
 It was composed during the performances at La Scala in 1885 (the first performance took place on January 24) and inserted into Roberto's "dramatic scene", composed a few months earlier for the Turin version (Teatro Regio, 27 December 1884).
 In this form it was published by Ricordi in the second Italian edition of the score for voice and piano (1885).
 In 1889 further amendments were made to the opera, eliminating the previous scene, leaving only the dramatic romanza (fourth edition: 1891).
"Ch'ella mi creda" is a tenor aria from act 3 of the opera "La fanciulla del West" by Giacomo Puccini.
 It is the tenor aria sung by Dick Johnson (a.k.a. the bandit "Ramerrez") before he is to be executed by a lynch mob of gold prospectors led by Sheriff Jack Rance.
 In the aria, Johnson asks them not to tell Minnie, whom he loves, that he has been killed.
 Instead, he asks them to "let her believe" (the title phrase, "ch'ella mi creda") that he is far away, on the road to redemption from his bandit past.
Maurice Stern (Mauro Lampi) is an American operatic tenor and sculptor, Stern graduated from the Eastman School of Music.
 He made his debut at the New York City Opera as The Emperor Altuom in Giacomo Puccini's "Turandot", and was singled out by Eric Salzman of "The New York Times" for a laudatory solo review of this very small role.
Tosca (] ) is an opera in three acts by Giacomo Puccini to an Italian libretto by Luigi Illica and Giuseppe Giacosa.
 It premiered at the Teatro Costanzi in Rome on 14 January 1900.
 The work, based on Victorien Sardou's 1887 French-language dramatic play, "La Tosca", is a melodramatic piece set in Rome in June 1800, with the Kingdom of Naples's control of Rome threatened by Napoleon's invasion of Italy.
 It contains depictions of torture, murder and suicide, as well as some of Puccini's best-known lyrical arias.
"In questa reggia" ("In this palace") is an aria from Giacomo Puccini's opera "Turandot" set to a libretto in Italian by Giuseppe Adami and Renato Simoni.
 The text is based on Friedrich Schiller's adaptation of the play "Turandot" by Carlo
"Non piangere, Liù" (Don't cry, Liù) is an aria sung by Calàf, the "Unknown Prince", in Act I of the Italian opera Turandot, by Giacomo Puccini.
 The lyrics were written by Giuseppe Adami and Renato Simoni.
 The scene takes place before the walls of the imperial palace.
 In the preceding aria ("Signore, ascolta!
" - "My lord, listen!" )
, Liù begs Calàf not to risk his life by playing a deadly game to marry Princess Turandot, and Calàf responds to her gently, asking her not to cry.
Gianni Schicchi (] ) is a comic opera in one act by Giacomo Puccini to an Italian libretto by Giovacchino Forzano, composed in 1917–18.
 The libretto is based on an incident mentioned in Dante's "Divine Comedy".
 The work is the third and final part of Puccini's "Il trittico" (The Triptych)—three one-act operas with contrasting themes, originally written to be presented together.
 Although it continues to be performed with one or both of the other "trittico" operas, "Gianni Schicchi" is now more frequently staged either alone or with short operas by other composers.
 The aria "O mio babbino caro" is one of Puccini's best known, and one of the most popular arias in opera.
Vincerò (] ; "I will be victorious") is the concluding cry of the aria "Nessun dorma" from Puccini's opera "Turandot".

Question: Vincerò (] ; "I will be victorious") is the concluding cry of which aria from the final act of Giacomo Puccini's opera "Turandot" and one of the best-known tenor arias in all opera?
Answer: Nessun dorma