Can you do this better???????

   I came across this lovely tenor on the internet. I am sure you
   will absolutely THRILL to the sound of his voice, especially
   the totally unique way in which he produces his top notes.

     I do recognize the aria as "Dein ist mein Ganzes Herz" from
     Lehar's lovely operetta, "The Land of Smiles," but I am
     having a slight problem figuring out  in what LANGUAGE
     this most amazing dude is singing.

       ........and you thought YOU couldn't sing!!!!!!!!!!!!!!!!!!!!!!!

Lend me a WHAT.......????????