This was just voted the world's most horrible cover version of any song ever:
And I must second that emotion. I would not have even posted it, due to it's stultifying nature, but hey, I suffered, so why shouldn't you? Celine Dion on air guitar? With pelvic thrusts? Lord help us all.
Best cover version ever? Jen, Nicole and I doing "Smell Yo Dick" in the kitchen. With ukulele! It must be seen to be believed.