Plucked from obscurity, high school senior Nikki Blonsky went from scooping ice cream to starring opposite John Travolta in the blockbuster Hollywood musical “Hairspray” (2007) in the blink of an eye. Cameras from “Entertainment Tonight” were there to record the moment when the full-figured teenager from rural New York received the news that she landed the career-making lead role. But friends and family knew that her success was not a lucky lottery win – she had been singing and dancing since early childhood, and was a mainstay in musicals and theater in high school. The fact that a