1. In honor of her big sister Marielle Hadid's birthday, Gigi Hadid shared this cute photo of the two of them at a roller rink in the late '90s:
2. In celebration of the 30th anniversary of The Fresh Prince of Bel-Air (I know, 30 years!!!), Rashida Jones shared this photo of herself alongside her dad, Quincy Jones, and Will Smith during the summer of 1990:
3. Jane Fonda celebrated having Mary Steenburgen and Candice Bergen on her Fire Drill Fridays weekly web series by sharing this photo of the three of them from their 2018 film, Book Club:
4. Paul McCartney posted this photo of himself alongside his childhood friend, Ivan Vaughn, and George Harrison in 1958 — Ivan was actually the person responsible for introducing Paul to John Lennon:
5. Tracee Ellis Ross gave us this perfect Girlfriends #TBT photo from 2004:
6. Dustin Lance Black shared this photo of himself and his hubby, Tom Daley, from back in 2019 (when life was simpler):
🌅HIKING HUSBANDS🌅 • #TBT It has been a year since this photo was taken. This year has brought so many changes and a huge sense of perspective. I feel very lucky 👨👨👦❤️ • #husbands #hike #runyoncanyon #grateful #sunset #2020
7. Tia Mowry posted this adorable photo of her in the early '80s, along with a photo of herself re-creating the pic today (which is a pretty spot-on re-creation):
8. Jennifer Garner celebrated National Teddy Bear Day by posting this photo of herself with her favorite teddy bear in 1975, and another photo of herself with that same teddy bear today (he had a wardrobe update since then, FTR):
9. Mayim Bialik celebrated National School Picture Day (so many overlapping holidays!) by sharing her school pic from 1986:
The year was 1986. I was in 6th grade. And yes, I'm wearing a hand me down chintz outfit. 😂 Happy #NationalSchoolPictureDay! #TBT