Malia and Sasha Obama
The country's "first sisters" are totally adorable. They also seem unspoiled, bright and well-behaved -- in front of the cameras, anyway. For anyone who doesn't already know, Malia Ann is the oldest, born on July 4, 1998, and Natasha, who goes by the nickname Sasha, followed on June 10, 2001. It's probably a toss-up for who's cutest. They'd both make great tween BFFs, but don't try to friend the girls on Facebook. Mom and Dad have nixed their having profiles for the time being.