If Miley Cyrus -- minus the bong -- wrote the book on how to be a successful teen queen, Selena Gomez has been following her lead quite nicely. Part of a show-business family herself, Gomez caught one of her earliest breaks with a guest-starring role on Hannah Montana and has since developed her acting niche further as the lead on the long-running Disney series Wizards of Waverly Place. With two albums, a film production company, a clothing line, andMonte Carlo -- a feature film with Leighton Meester and Katie Cassidy -- in the works, Gomez has successfully spread her brand to different corners of the entertainment spectrum. As long as she doesn’t mess things up, there’s a good chance that her teen success will be duplicated in adulthood.