One of the oddball phrases you hear a lot is that someone is so great that you'd listen to them read the phone book.
Well, it used to be a phrase you'd hear a lot back before the internet when people had and used phone books. (Kids, ask your parents what this means.)
But Harry Nilsson really did have a voice that was so beautiful that it would be cool to hear him sing the phone book.
As far as I know he never did that (or at least never recorded it), but here's the next best thing: Nilsson sings the credits to the Otto Preminger movie Skidoo.
Cynicism
5 hours ago