I like myself some good death metal and the bassist for my favorite band (Job For a Cowboy) makes these crazy videos and his latest one is probably the best. Original track and he had a guitarist with him when he made it. No, this isn't a death metal/heavy metal related track, its more of a "messing around" type of jam. You'll be trying to find your sides after you get done laughing at this.
If you ask me, the clown costume combined with everything else in there just makes it the most awesomest thinger out there in the interwebz.
Video -
http://www.youtube.com/watch?v=6bLKp2NFcLI