See Sarah Brightman & Andrea Bocelli

In 1996, Italian tenor Andrea Bocelli was invited to duet with English soprano Sarah Brightman at the final bout of German IBF World Light-Heavyweight boxing champion, Henry Maske, who was a national icon in Germany and was known for selecting entrance themes to his bouts.
Brightman, a friend of Maske, approached Bocelli after she heard him singing "Con te partirò", whilst she was dining in a restaurant. Changing