The first one that came to mind was the multi-language "Popular" that Kristin Chenoweth did at her Coming Home concert. I thought that was a great way to bring some freshness to an overdone song.
Lady Gaga and Tony Bennett's "I Won't Dance." That whole album actually is one of my all-time favorites.
I also do a mezzo-soprano rendition of the title song from Light in the Piazza- at Victoria Clark's encouragement, if you can believe it. I asked her if singing it down the octave was a cop-out, and she replied, "Not at all!"
https://newplayexchange.org/users/99643/amanda-delalla