Bocelli is a singer/songwriter with a specialty in Italian opera as a tenor. McPhee is an American actress and singer; she took runner-up in the fifth season of American Idol. According to an article on Wikipedia, McPhee is most commonly recognized for her performance in the 2008 movie The House Bunny.
One thing’s for sure, despite the disparate backgrounds of the performers, they make an incredible duo! I hope you enjoy watching this performance as much as I did.