Tin Man (Oz never did give nothing to the Tin Man, that he didn't - didn't already have) - 1974 - America
by Sam Lee
The song you are looking for is called 'Tin Man' and was recorded by John Edwards in '74, although I don't think it was released. The song was then released in 1997 by Expansion records on a 7 inch single. This track was also beautifully covered by Carleen Anderson.