Judith Durham is my all-time favorite and IMO the greatest vocalist in the history of recorded music. Judith has always been just as much at home with jazz and gospel as with folk music, and you can hear elements of those genres in this awesome performance:

http://www.youtube.com/watch?v=JVmCK...eature=related

Here are The Seekers seamlessly adapting their folk hit "The Music Of The World A-Turning" to the big band sound. The horns and percussion near the end have perfect timing, but as usual, the clear-as-a-bell voice of Judith Durham steals the show.

http://www.youtube.com/watch?v=4ZxLm...eature=related