Michael Jackson, a pop icon who has reached the celebrity world's highest heights and the lowest depths, turns 50 today. Living up to his Peter Pan reputation, here's what he told Good Morning America he plans to do to celebrate: "Just have a little cake with my children, and we'll probably watch some cartoons." Fun! After the jump, witness Michael Jackson go from cherubic little boy to, uh, the Michael Jackson we know today. It's not a pretty journey.