We used to interview sports figures and celebrities for a special encyclopedia back in the 1990s, and from everyone we had the pleasure of talking to, not one flinched when we asked them about how they gained success, and how other people can do it too.
Write a celebrity artist sometime, out of the blue, a letter or email, and ask him or her how they got so successful. I'm confident in saying you should get a very positive response. 
of course, the way the letter is written means a lot.