To find out, we tapped two makeup artists who have tons of experience working with the kids and teens. Our BTS insiders? Pati Dubroff , who's worked with Miley Cyrus for years, including through her teen years, and Carissa Ferreri , long-time makeup artist to now 17-year-old actress Bailee Madison . "When you're on camera, it's really about how much makeup," says Dubroff. "There are a lot of lights and you don't want features to get lost." Of course, she notes that there's more to it than just that: "Makeup is about self-expression, too."