Safe to say that I'm not much of a Miley Cyrus fan... (though I admire the marketing that made her into a superstar).
Here is a clip of Kelly Clarkson with Jill & Kate doing a MC cover of "The Climb" (taken from Just Jared)- it's about :45 in. It's better than the original
It's like when Mandy Moore did the cover of "Umbrella" - awesome. Wish they would release those versions... (not that Rihanna is untalented- I think she's great).