The Prince tries to convince Turandot to love him. At first she is disgusted, but after he kisses her, she feels herself turning towards passion. She admits that, ever since he came, she had both hated and loved him. She asks him to ask for nothing more and to leave, taking his mystery with him. The Prince however, reveals his name, "Calaf, son of Timur – Calaf, figlio di Timur" and places his life in Turandot's hands. She can now destroy him if she wants (Duet – Turandot, Calaf: Del primo pianto).
Scene 2: The courtyard of the palace. Dawn
Turandot and Calaf approach the Emperor's throne. She declares that she knows the Prince's name: Diecimila anni al nostro Imperatore! – "It is ... love!" The crowd cheers and acclaims the two lovers (O sole! Vita! Eternità).
I also love Paul Pott's version when he auditioned for Britain's Got Talent.