I don't know what it is about Slipknot that makes people want to mash them up with really stupid stuff. Yet every single time I see someone did it, I end up laughing out loud despite thinking there's no way another X-meets-Slipknot mashup is going to be funny.
This time around someone took the theme song from Barney and put the vocals from Slipknot's "Wait And Bleed" overtop. Of course it's funny, and of course I watched it a few times.