Four more tenors

So far we have met four tenors: Giacomo Aragall, Jose Carreras, Placido Domingo and Luciano Pavarotti, all of whom were in their prime in the 1970/80s. Now we'll look at four tenors who are singing today: Roberto Alagna, Joseph Calleja, Juan Diego Florez and Rolando Villazon. Each is going to sing the same aria, Una furtiva lagrima (A secret tear), from Donizetti's opera L'elisir d'amore (The love potion).