When we're kids, we'll look anywhere for idols and role models. Most often, we look to pop culture and we find our heroes there by way of idolizing whoever's work we enjoy the most. We copy them in the worst ways. We adopt their style of dress, their opinions on music, their viewpoints on the world and humanity, even their politics (a sometimes dangerous form of political socialization).
Inevitably, we grow out of these things and develop our own sense of identity, but we never forget the great impact these minds once had upon our own. We look at these fellows with a certain reverence and nostalgia, connecting them by association with the glory days of our childhoods.
But oftentimes, we look back and we're left feeling betrayed, usually because we come to realize these idols we once loved were either never that great to begin with or have changed irrevocably into something we don't appreciate. We feel a sense of embarrassment and bewilderment at their actions in the present day and wonder how we could ever have come to worship them so when we were kids.
It goes without saying that this happens with musicians and sometimes, it happens really, really bad.