You just have to hear this very well-done smooth jazz version of Metallica's "Enter Sandman."
The video, which was created and posted a few Februarys ago, is the handiwork of YouTube user Andy Rehfeldt, who adds:
"All instruments were arranged, played and recorded by me. YouTube doesn't pay me anything, so please Buy me a Beer!
Whether or not you buy Rehfeldt a drink, be sure to check out this video!