Query about music

[aacchh]

I cannot for the life of remember the name of this artist or album. It's a guy singing, and he takes heavy metal/hardcore songs (like "Enter Sandman" by Metallica) and sings them in a kind of Frank Sinatra style. I think that it sounds so nifty (and funny!) and would really like to buy or download some of his stuff. Thanks in advance!

Also, this community is awesome.

UPDATE: ANSWERED! THANKS SO MUCH TO EVERYONE!