Dio & Tony Iommi – God Rest Ye Merry Gentlemen (from the compilation We Wish You a Metal Xmas and a Headbanging New Year, 2008 Armoury Records) Perhaps the the last couple of legends that come to mind when you think of Christmas songs, Ronnie James Dio and Tony Iommi bring us the finest in Yuletide metal. These former Black Sabbath and Heaven and Hell mates made heavy music what it is today, so of course they have every right to do what they like regarding Christmas. I have had the honor and pleasure of seeing these amazing men in concert. The late, great Dio had one of the best voices in music. God rest, ye merry Gentleman. One of a kind.