Snooki
The best part about Jersey Shore is that the cast is made up of all normal people. Or at least they were before they were famous. Snooki joined her high school cheer team, but eventually quit to maintain her mental health. "Cheerleading was my life in high school, but it wasn't always easy for me. I started to be anorexic," she said, "There were freshmen, who were seventy pounds and I was, like, my spot as a flier is going to get taken away. So I ended up starving myself."
Dakota Fanning
Dakota Fanning is America's other favorite childhood star, and she was able to act and attend high school and college like anyone else. She'd already had roles in Uptown Girls and Gone, Baby, Gone as a child, but as a teen, she attended Campbell High School and cheered for their varsity team. Afterward, she transitioned into more mature films like The Runaways.