Selena Gomez

Even by tiny celebrity standards, Selena Gomez is of practically Borrower proportions. Before we meet, we pass in the hotel lobby, and I assume she is someone's nine-year-old daughter until a small clatter of BlackBerry jockeys sweeps behind her. Ask a pre-teen, however, and they'll tell you Gomez is one of the biggest stars in the world. With 15.6m Twitter followers, millions in album sales, tens of millions in box office dollars and countless headlines as the on-off girlfriend of Justin Bieber, she is one of the most successful of the Disney Channel alumni. Not the comparatively ancient generation...