Question: What subgenre of pop is Italian trio II Volo famous for?
Sentence (from "Il Volo discography"): This article is the discography of Italian popera trio Il Volo and includes all the studio albums, live albums, EPs, and singles, as well as the peak chart positions for Italy, Argentina, Austria, Belgium (Wallonia), France, Germany, Mexico, Netherlands, New Zealand, Switzerland and United States ("Billboard" 200, "Classical Albums", "Top Latin Albums" and "Latin Pop Albums" for the albums and "Classical Digital Songs" and "World Digital Songs" for the singles).
Relevant evidence: Yes