1. Mark Ruffalo celebrated the first anniversary of the release of Avengers: Endgame by sharing these photos from the world premiere for it:
2. Jennifer Lopez posted this clip from her classic 2001 rom-com The Wedding Planner:
You are enough ... #TheWeddingPlanner #TBT @McConaughey
3. Paris Hilton shared this photo of herself taken in 1996:
4. Ice Cube celebrated the 25th anniversary of his iconic film Friday by posting this photo taken for the movie of himself and co-star Chris Tucker:
Happy Anniversary
5. Luke Evans shared this photo of himself at a wig party in the early '00s:
6. Danielle Fishel posted this photo of herself on the cover of Twist magazine in 1999:
7. Marisa Tomei shared this promotional photo, taken in the '80s for Beirut, to promote her benefit live reading of the play:
8. In honor of Al Pacino's 80th birthday, Michelle Pfeiffer posted this screencap from their 1991 movie Frankie and Johnny:
9. Halle Berry shared this glam and sexy #TBT:
10. Shailene Woodley remembered when she appeared in The O.C. in the early '00s:
11. Hasan Minhaj shared this photo of himself with his family in the early '90s:
12. Eric Dane posted this photo of himself and Patrick Dempsey social distancing before it was a thing:
Blurry pic of how to hang out 6 feet apart @PatrickDempsey
13. Janet Jackson shared this gorgeous photo of herself taken in 1993:
14. Madonna posted this photo of herself as a teen in the mid-'70s:
15. Elton John shared this photo of himself on the first day of his US tour in 1974:
16. John Cleese posted a then vs. now photo of himself and his A Fish Called Wanda co-star Jamie Lee Curtis:
#tbt Reunited for a wonderful lunch with @jamieleecurtis just over a month ago. 🐟 #afishcalledwanda #thenandnow
17. Sarah Michelle Gellar shared this late '90s Buffy GIF to sum up her feelings on homeschooling:
18. Cindy Crawford posted this photo of herself as a teen in the early '80s:
19. Alfonso Herrera shared this photo of himself at 6 years old in 1990:
20. Chrissy Metz posted this photo of herself from when she first moved to LA in the early '00s:
#TBT to my first year in LA Just as bright-eyed and curly-haired as I wanted to be. Make no mistake, I also cried almost every day for the first year too. 😭🤪😀