My two favorite versions of Amazing Grace are to the theme of the Mickey Mouse Club show, (for you folks of an age or with more cable channels than you know what to do with) and always a crowd pleaser at church youth groups.

The other less likey tune is "Stairway to Heaven" which oddly enough sounds better with different lyrics.

And these all work in reverse, I.e. HOTRS lyrics to AG, or in combination, Stairway to Heaven lyrics to HOTRS tune, etc. So get out the and mix and match.