2.Madonna shared this photo of herself partying in the '90s with pals Kate Moss, Naomi Campbell, and Ingrid Casares.
3.Hillary Clinton took us back to her high school days.
4.Paul McCartney posted this photo of himself during the recording of the album Band on the Run.
5.Anderson Cooper in his pre-silver fox days.
6.Wilmer Valderrama shared this cute pic of him and his dad in the early '80s.
7.Cindy Crawford remembered her cinematic debut in 1995's Fair Game.
8.Seth Green remembered the first time he ever performed on stage.
9.And finally, Amy Schumer posted this pic of herself dressed as a fortunate teller in honor of her Golden Globe nomination for Best Actress in a Motion Picture Comedy or Musical for Trainwreck.