My guess is Ramsey Lewis, he was the only one that came up for a Google search with those keywords that you know.
See Google Keyword Search
The following is the description listed at Google:
Choir: (Singing) Your heart can be healed if you have all the pieces... GORDON: Thanks for joining us. That's our program for today. To listen to the show, ...
I checked the link to nbr.org, there is nothing there for those keywords in the html of the page.
Do you remeber if the choir usually sings the verse? If yes, then I think you've got a match.