Olivia Wilde
Olivia Wilde was a member of the Phillips Academy's step team because they didn't specifically offer cheerleading. The dances and styles are similar, but there isn't any stunting in step. Wilde said "it's just another form of cheering," and she killed it while she was there!
Madonna
Madonna doesn't need to thank anyone for her superstar career, but she did get her start on the mat. She attended Rochester Adams High School and was a straight-A student and star athlete. She got a dance scholarship to the University of Michigan but ultimately dropped out to become, well, Madonna.