OK, admittedly NOT mastering but
pretty darn funny. (I'm hoping Brad will let this stay as it will probably die a quick death anyway.)
I just found this the other night and was in tears before it was over. Someone took the time to replace the audio from an Eric Clapton concert. Hilarious.
If you haven't seen it, enjoy:
http://youtube.com/watch?v=x_M9zWORBuA(There's another one with Stevie Ray Vaughn too...)