For five seasons, Lifetime's show Dance Moms has tracked the lives of preteen girls and aspiring dancers at the Pittsburgh-based Abby Lee Dance Company. The most famous alum? Sia's go-to dancer Maddie Ziegler, 12. Now, two more cast members are set on stardom, but not as dancers -- they want to be pop stars.
Nia Frazier, 13, aka Nia Sioux
Musical Start: "I've always sang in the mirror."
Influences: "My favorite singers are Beyoncé, Rihanna and Meghan Trainor."