Michael BubleFrom his broad smile to his sleek suit, Michael Bublé oozes self-confidence. So, it's quite a surprise when the Canadian singer confides to PopEater that he's always felt uncomfortable in that now very successful skin of his, especially before he was famous.

"I think the reason I have come as far as I have stems from insecurity," Buble tells PopEater. "I can't speak for all the entertainers, but I'm sure there are lots of people in the business -- even in politics -- and the CEO's of enormous companies, who get there because insecurity pushes you. I sometimes think the brasher the celebrity or the artist, the more insecure they are."