#15: Justin Bieber
Becoming famous as a child is such a unique experience that it seems only those who’ve been through it can truly understand. Managing intense fame at such a young age isn’t easy for any kid, and apparently, it turned Justin Bieber into a bit of a douchebag in school.

Can you really blame him, though? He was just starting his music career and had become the nationwide obsession of every girl aged 10-16. That said, humility is a crucial trait for anyone, especially when you’re dealing with that level of fame at such a young age.