I have always felt "My heart will go on" would sound incredible in a male baritone. Celine Dion with her soundtrack never fails to raise the goose-pimples on me every time I hear it. But I would love to hear it in Ronan Keating-esque or a Scott Stapp voice.
Some YouTube scrubbing, I fail to come up with a satisfactory answer, but what I found was a somewhat funny sounding power metal cover and a few digitally lowered pitch versions.
Weird are the people who upload the digitally altered versions as male versions and weirder are those who click like on those.