From Meryl Streep and Michelle Obama to Lady Gaga and Snooki, these celebrities actually went to their prom ... and wore that.
Considering how larger than life they are now, it's pretty amazing to see just how innocent, sweet and awkward they once were.
Or in the case of Jaden Smith wearing a dress, just awkward:
Lady Gaga Prom Photo
That's Lady Gaga's prom photo! She's in the middle in blue!
Brad Pitt Prom Photo
Brad Pitt's senior prom photo. Classic.
Will Ferrell Prom Photo
Will Ferrell's prom photo. Great stuff.
Kim Kardashian Prom Photo
Yes, that's really Kim Kardashian, with her first love T.J. Jackson (Michael's nephew)!
George Clooney Prom Photo
George Clooney at the prom. Guy was the man even then.
Katie Couric Prom Photo
Katie Couric looking downright adorable at her senior prom.