sparky ... you are right - I LOVE listening to and watching these kids, who BTW are now 18 (GianLuca), 19 (Ignazio) and 20 (Piero) yrs old ...
My wife and I saw them in Boston last September, and would go there to see them again, but WE hope to be in Italy at that time ...
The son of good friends of ours is a manager at a restaurant in Manhattan -
http://www.osteriamorini.com/index.php - and Il Volo and some others were there for dinner recently .. he said they are very personable ...
And while to my knowledge only Donnie is Italian, I am sure the rest can appreciate good talent ...