I first heard about Jon B. Higgins when I was a kid. I was listening to one of the All India Radio channels and after the broadcast ended, the announcement named the singer as Jon B. Higgins. I was quite surprised as back then I had thought only Indians, that too South Indians, sang carnatic music. Another fact that added to the surprise was that there was no accent as such in the rendition to suggest that someone non-Indian was singing.
An article in Worldspace Voice brought back these old memories today. Here are some links providing more info on Jon Higgins:
On a slightly different note, here is an article titled “Globalization and Indian Classical Music: The North American Scene“