just because it's such a... >> it's a voi. >> can we start with andrea bocelli. >> andrea bocelli.inger. >> come on. >> i swear. love, love, love this man. he's beyond beyond. he's a lawyer. he sculpt, plays every instrument, rides horses, swims, dives, wind surfs. he's a renaissance man. >> what is it in his vocal quality, approach to music that makes him the greatest? >> he walks in both worlds. he's the most knowledgeable classical person i know. more than lang lang my friend the piano plash. he can sit at the piano and play a beetles seconding or pick up the guitar and play a creedance clearwater guy or sing an opera that you or i knew. that was not a short answer. >> that's all right. i don't want short, i want expansive david foster. i think of the other amazing voices that you have worked with, and a couple of names - whitney houston. houston. >> i was between whitney houston and celine. now. >> great voices. it's worthy of saying this. celine was so amazing because whatever i asked her to do she'd do exactly what i wanted. like, i would cop up with a lick in my -- come up w