1. Chris Hemsworth shared this behind-the-scenes photo of himself alongside his stuntman, Bobby Holland Hanton, on the set of Thor: Ragnarok.
2. Joseph Gordon-Levitt posted this dapper photo of himself as a kid.
3. Naomi Campbell took it back to her early-'90s Versace days, when she modeled some colorful sequin pants alongside fellow supermodel Christy Turlington.
4. Barbra Streisand shared this photo from the London premiere of Funny Girl.
5. Iman posted this striking photo of herself from the '80s.
6. In honor of Maggie Gyllenhaal's birthday, Salma Hayek shared this photo of two them hanging out together a couple of years ago.
7. Rage Against the Machine's Tom Morello (left) posted this photo of himself alongside Tool's Adam Jones in high school— when the two were in band together.
8. Laura Prepon posted this photo of herself as a tween.
9. Topher Grace shared this behind-the-scenes photo of himself and his co-stars, Kate Bosworth and Ginnifer Goodwin, on the set of their film, Win a Date with Tad Hamilton.
10. Jason Isaacs shared this old photo of himself in drag.
#FBF Lucius’s attempts to stay incognito post Battle of Hogwarts were failing miserably. The pits were the giveawa… https://t.co/mmYG2ZJs3q