1. Justin Bieber shared this photo of himself and wife Hailey Baldwin from the first time they met in the early '10s:
2. Susan Sarandon posted this fantastic #TBT from when she played Cecilia Monroe on Friends in 2001:
3. In honor of Naomi Watts' 51st birthday, Tom Holland shared this photo of the two of them taken in 2012, during the filming of their movie, The Impossible:
4. Naomi Campbell posted this photo of herself taken by the late celebrity photographer Peter Lindbergh in the early '90s:
5. Jake Gyllenhaal also remembered Peter Lindbergh and shared these photos Lindbergh took of him a few months ago:
6. Diane Keaton posted this photo of herself and Jack Nicholson taken for their 1981 movie, Reds:
7. Janet Jackson celebrated the 17th anniversary of the release of her Janet: Live in Hawaii DVD by sharing the cover art for it:
8. Carly Rae Jepsen posted this oh-so-cute video of herself in the early '90s:
9. Lupita Nyong'o shared this adorable photo of herself as a kid in the '80s and added a caption about why she felt she needed to write her children's book, Sulwe:
10. Danielle Fishel posted this Glamour Shots photo of herself from the late '80s (and OMG, I have so many questions about the hair!):
11. Mariah Carey celebrated the 24th anniversary of her iconic album Daydream by sharing all the singles and cover art for it:
12. In honor of the premiere of RuPaul Drag Race UK, Emma Bunton posted this photo from when she guest-judged on All Stars 3 in 2018:
13. Lacey Chabert shared this oh-so-'80s photo of herself in celebration of her 37th birthday:
14. Dolly Parton posted this behind-the-scenes photo of herself and Jane Fonda on the set of their 1980 film, 9 to 5:
15. Trace Ellis Ross shared this cute photo of herself in the '70s:
16. Madonna celebrated the birthday of her long-time manager, Guy Oseary, by posting a photo of them today, in the '00s, and in the '90s:
17. Britney Spears shared these photos of herself performing during her Piece of Me residency and captioned it with an important self-care message for her fans:
18. And finally, Better Midler posted this GIF in honor of Hocus Pocus Season:
It’s time...