Prom season is officially upon us and you know what that means — sparkly dresses, cheesy poses and LOTS of sequins.

We're so used to seeing stars like Kim Kardashian and Britney Spears all dolled up on the red carpet that we forget they, too, went to prom — way before they had a professional glam squad at their disposal.

Click through to see some hilarious pics from our favorite stars at their proms — including Will Ferrell wearing a crown and Ashton Kutcher busting a move on the dance floor.