Related Information for Girl Authority "The girls" are nine real kids ranging from ages 8 to 13. Friends for years, the girls love to sing, dance, laugh and hang out together.Country Girl Crystal is the down-to-earth member of the group, while Boho Girl Jess is Girl Authority's free-spirited sprite. Party Girl Kate is fun-loving and energetic, while Rock-n-Roll Girl Tarr is spunky and feisty. Urban Girl Gina is sassy and independent; Fashion Girl Alex is crazy about clothes; and Preppy Girl Zoe is a cute schoolg.. read more