Smooth McGroove, the one-man a cappella star with the majestic beard, is back. This time he's covered Mega Man 3's Dr. Wily Stage 3 theme. Listen at your own risk, please. His arrangements are known for making hearts explode out of sheer delight and ecstasy.
If you're still in one piece, go check him out on YouTube.
Thanks for the tip, DocLithius!