Here's a bit of advice from Bob Lefsetz in The Lefsetz Letter:
"If you want to have a long career, write your own material. Be different, not the same. And don't go on television, it will shorten your tenure."
It's advice to singers contemplating going on American Idol. Lefsetz thinks AI is killing how "success" in music is achieved (or how it's supposed to be achieved).
I often find many analogies in music to magic (both in routining, performance and developing material). Just found this interesting.
The whole article is here: http://new.us.music.yahoo.com/blogs/the ... rican-idol