I think the whole "Earl's Court" album is some of his best singing. Plus his rendition of "Meat Is Murder" from "25 Live" is powerful. And I agree with all the suggestions that have been offered. I usually hate covers albums but I wouldn't mind is Moz did one based on the few covers I've heard. What are some songs you'd like to hear him do?
These come to mind
"Do You Really Want To Hurt Me?"
"The Crying Game"
"Tears Of A Clown"
"A Different Corner"