There was an article in today's Nashville Tennessean about how country music does good in the land of it's birth but does poorly elsewhere (such as in Japan where Bluegrass is said to be bigger)
For more of the article:
http://www.tennessean.com/apps/pbcs.dll/article?AID=/20070111/BUSINESS11/701110391/1436/BUSINESS
For more of the article:
http://www.tennessean.com/apps/pbcs.dll/article?AID=/20070111/BUSINESS11/701110391/1436/BUSINESS