1. Justin Bieber posted this photo of him and his ex, Selena Gomez, during happier times.
2. Kirsten Dunst took us back to the 1994 premiere of her film, Little Women, where she posed on the red carpet with her co-stars Christian Bale and Winona Ryder.
3. Reese Witherspoon also took us back to 1994, to the premiere of True Lies where she rocked some serious '90s mom jeans.
4. Jenny Lewis remembered her cult classic film, Troop Beverly Hills.
5. Madonna shared this screengrab of herself and BFF Debi Mazar from her 1992 music video for "Deeper and Deeper."
6. Sarah Michelle Gellar posted this sweet photo in celebration of her Buffy the Vampire Slayer co-star Alyson Hannigan's birthday.
7. Debra Messing remembered the time she got to present with Zac Efron — but more importantly his fabulous bangs — at the 2008 SAG Awards.
8. Nina Dobrev (on the right) shared this adorable pic from her Brownie days.
9. And finally, in honor of Easter, Kourtney Kardashian posted this hella cute photo of her and Kim on an Easter egg hunt in the early '80s.
