How to debase a great tune.
The original version by Def Leppard in 1981:
http://www.youtube.com/watch?v=R1-j9hEPenM
The live version in 1988 (different from the original, and still great):
http://www.youtube.com/watch?v=PKyeWptrG8M
And then…
The Mariah Carey version in 2003:
http://www.youtube.com/watch?v=JjigTAcGoMc
(Anyone who has worked in a major recording studio, can hear the auto-tune, Mariah.)