WOW!  This is just BAD, but for some reason I watched all the way to the end.  I think it was because of the description of the video on this guy's Youtube Channel.

It says "I have not played the real Stairway To Heaven song since 1981. You can hear me talk at the end about slamming a pie on top of a teacher's head."

Let me know how far you make it through this one in the comments section below.