Many of you may already know this, but there's an 18-year old British boy who's been covering a lot of Christine's songs (as well as a couple Bowie and Joni Mitchell tunes). His performances are, I think, unaffected, original and penetrating, which is remarkable given his age.
If you haven't checked him out, here's the link:
http://www.youtube.com/user/davidr18
I especially like his versions of YMLF and Songbird.