Justin Bieber
Often remembered as "the worst guest in SNL history", JB has had a pretty bumpy road on his way to the top. As a tween, he was annoying and unfocused, but he never really grew out of that phase. He threw wild parties, abused drugs and alcohol, and has stated that he acted disrespectfully toward women during this period of his life. After finding religion and a wife, he's been very settled down since...
Advertisement