sounds like the BS that popped out of people's mouths when Dylan went rock. Creative artists often try out different mediums of expression. Check out Alison Krauss, the belle of bluegrass, singing with Robert Plant of Led Zeppelin fame. Does this mean she will no longer be appearing with Union Station? I don't think so.Sounds like Jewel is selling out
Another example is Mark Knopfler of Dire Straits and Emmylou Harris.