Miley Cyrus

Miley CyrusPhoto: Mark O’Donald

Okay, don’t judge. Even though she loves country fried steak too much to be a vegetarian, Cyrus gets serious props for trading in her Porsche SUV for a hybrid, finding good homes for the chickens featured in Hannah Montana: The Movie (for which PETA gave her a Compassionate Citizen Award), recording a global warming song for her latest album, and being one of the faces of Disney’s new Friends for Change environmental campaign. She may be jailbait, but she’s probably the most influential person on this list.