I have no idea who the Cowboy Junkies music group is because while I like to hear music, it is more background noise for me. I guess music doesn't have a conversation with me!
Anyway, Seth Godin wrote a post about the challenge that popular music groups have. All their fans want to hear the "old" stuff and really don't feel a connection when the group is producing new sounds.
In thinking about this, it is a demonstration of how most of us want to stay within the confines of our own comfort zone. It feels good to hear familiar music, or go to the same restaurant, or take the same route to work. We are creatures of habit because to do something different doesn't feel right or good.