About
X Story refers series of YouTube Poop Music Videos (YTPMVs) where people generally use the Cave Story’s main theme music by Nicalis and Studio Pixel.[1]
Origin
The very first upload is made by the youtube user “mssnor”. After the deactivation of the mssnor’s account, origin video is reuploaded by vbictor97.
Spread
Lots of ytpmv remixes can be found on youtube.[2]
Need expert
Examples
Left:Jack Black’s Octagon/Right:Old Spice Commercials
Left:My Little Pony/Right:Snoop Dogg
References
[1]Wikipedia Cave Story