Before they landed in tinsel town, some of the biggest celebrities were putting all that outgoing spark into cheering for their school’s alma mater. Check out the surprising list below of all your favorite Hollywood icons gearing up their baby faces and pom-poms for spirit week.

Mandy Moore

From her music career to acting, we’ve always seen the bright and bubbly personality of Mandy Moore loud and clear. It’s no shocker then that she was the top cheerleader at her high school before being discovered when she was 15.

Cameron Diaz

Up until her big break discovery by a model scout when she was 16 years old, Cameron Diaz was the captain of the cheerleading team for her California high school.