If you haven't heard it before, here is another version of SMILE by violinist Anne Akiko Meyers. Part of 'Performance Today' - A LOOK BACK, the last 20 years of the program. You can download Meyers' version of SMILE off the NPR website at this LINK.
Others who have recorded SMILE listed at NPR:
Madeleine Peyroux - LISTEN HERE
Freddie Redd - Jazz Pianist
List of more SMILE recordings
Update January 22, 2007 - Nanny Assis, Double Rainbow, Blue Toucan label. Nanny is a Brazilian jazz artist who has recorded his own version of Sorrie (Smile) "soft and pleasing... with a Brazilian beat". LINK
Update February 12, 2007 - Tierney Sutton Band version of Smile
Update February 19, 2007 - Rebecca Parris version of Smile