I never had any personal experience with Prince, thought I've known a fellow who has. I have had some experiences with several other musicians, Christian, Country, Rock and some Classical types. To be honest, it's a mixed bag across the board. They're all people. Some nice, some not so nice. Some very talented, and some look good and can afford autotune.
I think we all "idolize" to a degree, but when you get a little closer and see more of the people it evens things out. You can separate talent from having an appreciation for their discography or who they are as a person.