1. Will Smith shared this picture of himself serving looks in the '90s.
2. Tracee Ellis Ross remembered when she modeled for Thierry Mugler in 1991.
3. In honor of his little sister's birthday, David Beckham posted this picture of the two of them in the early '80s.
4. Madonna posted this photo of herself in the '90s.
5. In honor of President's Day, Cindy Crawford posted this photo of herself on the cover of the first issue of JFK Jr.'s George magazine in 1995.
6. Catherine Zeta-Jones remembered when she co-starred with Sean Connery in 1999's Entrapment.
7. Adam DeVine posted his senior class photo from 2002.
8. While his Workaholics co-star, Anders Holm, posted his late '90s high school swim team yearbook photo.
9. Sarah Michelle Gellar shared this childhood photo of herself from the early '80s.
10. Mariah Carey posted this stunning photo of herself from the '00s.
11. Joseph Gordon-Levitt remembered his 2004 film, Mysterious Skin.
12. Stan Lee shared this behind-the-scenes photo of him and Julie Andrews on the set of The Princess Diaries 2.
#TBT to the set of THE PRINCESS DIARIES 2: ROYAL ENGAGEMENT in 2004, which might be the closest I’ve come to royalt… https://t.co/oWb0vGFVG9