1. Mariah Carey took us back to her Butterfly era with this shot from the album's liner notes.
2. While Paul McCartney took us back to 2008, when he hung out with Rihanna at the Brit Awards.
3. Barbra Streisand remembered her friend Donna Summer.
4. Amy Schumer shared this super-cute photo of herself as a toddler.
I was born this way #tbt
5. Katie Holmes looked oh-so-late-'90s in her denim overalls shorts.
6. Iman once did a photo shoot looking like a fierce Morticia Addams in the mid-'90s.
7. Rob Lowe, once again, reminded us that he has not aged since the early '80s.
8. Meanwhile Jared Leto reminded us what he looks like without his long ombre hair.
Too much pressure. #NFTO #tbt