The thought of singing Head Like A Hole [1] in the style of the Chairman of the Board (Frank “Ol' Blue Eyes” Sinatra) [2] has always been amusing to me, but now I've found something that's just as amusing, yet actually exists—Nine Inch Noëls [3], a medly of classic Christmas songs sung with Nine Inch Nails lyrics (link via Joey deVilla [4]).
And yes, it is just as funny as it is wrong.
[1] http://www.9inchnails.com/lyrics/head-like-a-hole.php
[2] http://www.franksinatra.com/
[3] http://badgods.com/nineinchnoels.html