It’s a rite of passage: playing sports in high school. Even some of the biggest Hollywood celebs did it, back before they were stars—though some might prefer to forget the uniforms. Can you guess who these sporty stars are?

Snakkle dusted off the megaphone and did a few splits to bring you these cheer-tastic pics of celebrities who used to root for their school teams!

With the third season of Fox’s smash hit Glee premiering on September 21, Gleeks everywhere are wondering what is in store for the McKinley High Glee Club since they failed to win nationals—and what recording artists they’ll be covering! As we ponder what love triangles will be resolved, how Sue is holding up, and if we’ll ever meet Rachel’s dads, take a look back at these amazing performers before they made “mashup” a household word.

Bust out those teasing combs! Snakkle dug through a collection of burned-out blow dryers and empty hairspray cans to bring you some hair-raising high school pics of celebs with crazy coifs.