media_removed_toofab 102011Jason Biggs was in his early twenties when he starred as a high school student in "American Pie" -- but what did he and the cast of the movie really look like when they were in their teens?

To celebrate the release of "American Reunion" this weekend in theaters, we found as many yearbook photos of the cast, showing how different they all looked before they became stars.

Biggs, Seann William Scott, Tara Reid, Shannon Elizabeth, Chris Klein and more ... check out their pretty shocking pre-fame faces and fashion!