Willow Smith (AKA Willow): Perhaps the biggest small-fry of them all, Willow is an actress and a singer and she's received high praise for both of her endeavors. In 2007 Willow appeared in Kit Kittredge: An American Girl, and she received a Young Artist Award for her performance. Willow was also responsible for the infectiously catchy song “Whip My Hair,” which went Platinum by the way. Willow, who fans are calling “mini Rihanna,” is set to release her debut album soon, and she'll be playing the title role in the remake of Little Orphan Annie that her father is producing.