Paul Simon - "It's Worth Beleivin' ".
Mariah Carey (I don't wanna hear it! :D ) -
"My Love For You" and "Shadows" (as long as she doesn't invite a rapper or R&B it up too much.

)
James Taylor - "Triangle"
Neil Diamond - "Poor Little Allison" I can hear him in my head right now doing that one.
If Jim Morrison was still alive,I'd have loved to hear his & The Doors renditon of "Protocol",if he dared to do a cover that is.
(No controversy please) If MJ were still popular,I think he could do a really funky,"Baby Step Back" ala "Billie Jean".
I would also like to hear younger artist Norah Jones do a really mellow,"I'll Tag Along".
I guess that's about it for now. Later!